diff --git a/application/controllers/api/frontend/v1/issues/IssueChecker.php b/application/controllers/api/frontend/v1/issues/IssueChecker.php
new file mode 100644
index 000000000..4ed957dba
--- /dev/null
+++ b/application/controllers/api/frontend/v1/issues/IssueChecker.php
@@ -0,0 +1,170 @@
+<?php
+defined('BASEPATH') || exit('No direct script access allowed');
+
+class IssueChecker extends FHCAPI_Controller
+{
+	const DEFAULT_PERMISSION = 'system/issues_verwalten:r';
+
+	protected $person_id;
+	protected $_extensionName = null;
+	protected $_codeLibMappings = [];
+	protected $_codeProducerLibMappings = [];
+	protected $_app = null;
+
+	protected $errors = [];
+	protected $infos = [];
+
+	public function __construct($permissions)
+	{
+		$default_permissions = [
+			'checkPerson' => self::DEFAULT_PERMISSION,
+			'countPersonOpenIssues' => self::DEFAULT_PERMISSION
+		];
+
+		if(!is_array($permissions))
+		{
+		    $this->terminateWithError("Issue Checker: permissions must be an array");
+		}
+		
+		$merged_permissions = array_merge($default_permissions, $permissions);
+		
+		parent::__construct($merged_permissions);
+
+		$this->load->model('system/Issue_model', 'IssueModel');
+		$this->load->model('person/Person_model', 'PersonModel');
+	}
+
+	public function checkPerson()
+	{
+		$person_id = $this->input->post('person_id', true);
+
+		if (!is_numeric($person_id)) $this->terminateWithError($this->p->t('ui', 'error_invalidId', ['id'=> 'Person ID']), self::ERROR_TYPE_GENERAL);
+
+		$this->person_id = intval($person_id);
+
+		$persRes = $this->PersonModel->load($this->person_id);
+		if (!hasData($persRes)) $this->terminateWithError('Person with id ' . $this->person_id . ' not found.', self::ERROR_TYPE_GENERAL);
+
+		$allCodeLibMappings = array_merge($this->_codeLibMappings, $this->_codeProducerLibMappings);
+
+		$this->load->library(
+			'issues/PlausicheckProducerLib',
+			array(
+				'extensionName' => $this->_extensionName,
+				'codeLibMappings' => $allCodeLibMappings
+			),
+			'PlausicheckProducerLib'
+		);
+
+		$this->load->library(
+			'issues/PlausicheckResolverLib',
+			array(
+				'extensionName' => $this->_extensionName,
+				'codeLibMappings' => $this->_codeLibMappings,
+				'codeProducerLibMappings' => $this->_codeProducerLibMappings
+			),
+			'PlausicheckResolverLib'
+		);
+
+		$this->produceIssues();
+		$this->resolveIssues();
+		$this->produceIssues();
+
+		$openIssueCountRes = $this->countOpenIssues(array_keys($allCodeLibMappings));
+		if (isError($openIssueCountRes)) $this->terminateWithError(getError($openIssueCountRes), self::ERROR_TYPE_GENERAL);
+
+		$data = array(
+			'person_id' => $this->person_id,
+			'openissues' => hasData($openIssueCountRes) ? getData($openIssueCountRes) : 0
+		);
+
+		$this->addMeta('errors', $this->errors);
+		$this->addMeta('infos', $this->infos);
+
+		$this->terminateWithSuccess($data);
+	}
+
+	public function countPersonOpenIssues()
+	{
+		$person_id = $this->input->get('person_id', true);
+
+		if (!is_numeric($person_id)) $this->terminateWithError($this->p->t('ui', 'error_invalidId', ['id'=> 'Person ID']), self::ERROR_TYPE_GENERAL);
+
+		$this->person_id = intval($person_id);
+
+		$persRes = $this->PersonModel->load($this->person_id);
+
+		if (!hasData($persRes)) $this->terminateWithError('Person with id ' . $this->person_id . ' not found.', self::ERROR_TYPE_GENERAL);
+
+		$openIssueCountRes = $this->countOpenIssues(array_keys(array_merge($this->_codeLibMappings, $this->_codeProducerLibMappings)));
+		if (isError($openIssueCountRes)) $this->terminateWithError(getError($openIssueCountRes), self::ERROR_TYPE_GENERAL);
+
+		$data = array(
+			'person_id' => $this->person_id,
+			'openissues' => hasData($openIssueCountRes) ? getData($openIssueCountRes) : 0
+		);
+
+		$this->addMeta('errors', $this->errors);
+		$this->addMeta('infos', $this->infos);
+
+		$this->terminateWithSuccess($data);
+	}
+
+	protected function countOpenIssues($fehlercodes)
+	{
+		if (isEmptyArray($fehlercodes)) return success([]);
+
+		// load open issues with given errorcodes
+		$openIssuesRes = $this->IssueModel->getOpenIssues(
+			$fehlercodes,
+			$this->person_id
+		);
+
+		// log error if occured
+		if (isError($openIssuesRes)) return $openIssuesRes;
+
+		$issues = hasData($openIssuesRes) ? getData($openIssuesRes) : [];
+		$issuescount = is_array($issues) || $issues instanceof Countable ? count($issues) : 0;
+
+		return success($issuescount);
+	}
+
+	protected function produceIssues()
+	{
+		if (isEmptyArray($this->_codeLibMappings) && isEmptyArray($this->_codeProducerLibMappings)) return success([]);
+
+		$allCodeLibMappings = array_merge($this->_codeLibMappings, $this->_codeProducerLibMappings);
+
+		$result = $this->PlausicheckProducerLib->producePlausicheckIssues(
+			array('person_id' => $this->person_id)
+		);
+
+		// log if error, or log info if inserted new issue
+		if (isset($result->errors))
+			$this->errors = array_merge($this->errors, $result->errors);
+		if (isset($result->infos))
+			$this->infos = array_merge($this->infos, $result->infos);
+	}
+
+	protected function resolveIssues()
+	{
+		// load open issues with given errorcodes
+		$openIssuesRes = $this->IssueModel->getOpenIssues(
+			array_keys(array_merge($this->_codeLibMappings, $this->_codeProducerLibMappings)),
+			$this->person_id
+		);
+
+		if (hasData($openIssuesRes))
+		{
+			$openIssues = getData($openIssuesRes);
+
+			$result = $this->PlausicheckResolverLib->resolvePlausicheckIssues($openIssues);
+
+			// log if error, or log info if inserted new issue
+			if (isset($result->errors))
+				$this->errors = array_merge($this->errors, $result->errors);
+			if (isset($result->infos))
+				$this->infos = array_merge($this->infos, $result->infos);
+		}
+	}
+}
diff --git a/application/controllers/api/frontend/v1/issues/Issues.php b/application/controllers/api/frontend/v1/issues/Issues.php
new file mode 100644
index 000000000..6ae268a53
--- /dev/null
+++ b/application/controllers/api/frontend/v1/issues/Issues.php
@@ -0,0 +1,100 @@
+<?php
+
+defined('BASEPATH') || exit('No direct script access allowed');
+
+
+class Issues extends FHCAPI_Controller
+{
+	const DEFAULT_PERMISSION = 'system/issues_verwalten:r';
+	// code igniter 
+	protected $CI;
+
+	public function __construct() {
+		
+		parent::__construct(
+			array(
+				'getOpenIssuesByProperties' => Self::DEFAULT_PERMISSION
+			)
+		);
+
+		// Loads authentication library and starts authenticationfetc
+		$this->load->library('AuthLib');
+
+		$this->load->model('extensions/FHC-Core-Personalverwaltung/Api_model','ApiModel');
+		$this->load->model('person/Person_model','PersonModel');
+		$this->load->model('system/Fehler_model','FehlerModel');
+		$this->load->model('system/Issue_model', 'IssueModel');
+		$this->load->model('person/Benutzer_model', 'BenutzerModel');
+		
+		// get CI for transaction management
+		$this->CI = &get_instance();
+	}
+
+	public function getOpenIssuesByProperties()
+	{
+		$person_id = $this->input->get('person_id', true);
+		$oe_kurzbz = $this->input->get('oe_kurzbz', true);
+		$fehlertyp_kurzbz = $this->input->get('fehlertyp_kurzbz', true);
+		$apps = $this->input->get('apps', true);
+		$behebung_parameter = $this->input->get('behebung_parameter', true);
+
+		if (isset($person_id) && !is_numeric($person_id))
+			$this->terminateWithError('person id is not numeric!');
+
+		if (isset($behebung_parameter) && !is_array($behebung_parameter))
+			$this->terminateWithError('Behebung parameter invalid');
+
+		$issueRes = $this->IssueModel->getOpenIssuesByProperties($person_id, $oe_kurzbz, $fehlertyp_kurzbz, $apps, $behebung_parameter);
+
+		if (isError($issueRes))
+		{
+			$this->terminateWithError(getError($issueRes));
+		}
+
+		$this->terminateWithSuccess(hasData($issueRes) ? getData($issueRes) : []);
+	}
+
+	public function PersonenMitOffenenIssues()
+	{
+		
+		$sql = <<<EOSQL
+SELECT
+
+		person_id, uid, vorname, nachname, count(*) AS openissues ,
+		(select count(*) anz_aktiv 
+		 from hr.tbl_dienstverhaeltnis dv 
+		 where dv.mitarbeiter_uid=uid and dv.von<=now() and 
+		       (dv.bis is null OR dv.bis>=now())
+		) aktiv
+FROM 
+		system.tbl_issue 
+JOIN 
+		system.tbl_fehler USING (fehlercode) 
+JOIN 
+		public.tbl_person USING (person_id) 
+JOIN 
+		public.tbl_benutzer USING (person_id) 
+JOIN 
+		public.tbl_mitarbeiter ON uid = mitarbeiter_uid                         
+WHERE 
+		app = 'personalverwaltung' AND verarbeitetamum IS NULL 
+GROUP BY 
+		person_id, uid, vorname, nachname 
+HAVING 
+		count(*) > 0 
+ORDER BY 
+		count(*) DESC;
+			
+EOSQL;
+		
+		$personenmitissues = $this->IssueModel->execReadOnlyQuery($sql);
+		if( hasData($personenmitissues) ) 
+		{
+			$this->terminateWithSuccess(getData($personenmitissues));
+		}
+		else
+		{
+			$this->terminateWithSuccess(array());
+		}
+	}
+}
\ No newline at end of file
diff --git a/application/controllers/jobs/PlausiIssueProducer.php b/application/controllers/jobs/PlausiIssueProducer.php
index 356895a76..77d4518ff 100644
--- a/application/controllers/jobs/PlausiIssueProducer.php
+++ b/application/controllers/jobs/PlausiIssueProducer.php
@@ -18,7 +18,7 @@ class PlausiIssueProducer extends PlausiIssueProducer_Controller
 		$this->load->model('organisation/studiensemester_model', 'StudiensemesterModel');
 
 		// get current Studiensemester
-		$studiensemesterRes = $this->StudiensemesterModel->getAktOrNextSemester();
+		$studiensemesterRes = $this->StudiensemesterModel->getAktOrNextSemester(62);
 		if (hasData($studiensemesterRes)) $this->_currentStudiensemester = getData($studiensemesterRes)[0]->studiensemester_kurzbz;
 
 		// set fehler which can be produced by the job
diff --git a/public/js/api/factory/issues.js b/public/js/api/factory/issues.js
index 376845897..1279cc232 100644
--- a/public/js/api/factory/issues.js
+++ b/public/js/api/factory/issues.js
@@ -4,7 +4,7 @@ export default {
 	{
 		return {
 			method: 'get',
-			url: '/api/frontend/v1/Issues/getOpenIssuesByProperties',
+			url: '/api/frontend/v1/issues/getOpenIssuesByProperties',
 			params: { person_id, oe_kurzbz, fehlertyp_kurzbz, apps, behebung_parameter }
 		};
 	}
diff --git a/public/js/components/Issues/IssueChecker.js b/public/js/components/Issues/IssueChecker.js
new file mode 100644
index 000000000..f698faa64
--- /dev/null
+++ b/public/js/components/Issues/IssueChecker.js
@@ -0,0 +1,65 @@
+export default {
+	name: 'IssueChecker',
+	//emits: ['issuesLoaded'],
+	 components: {
+		"p-skeleton": primevue.skeleton,
+	 },
+	 props: {
+		person_id: Number,
+		//oe_kurzbz: String,
+		apps: [String, Array],
+		endpoint: {
+			type: Object,
+			required: true
+		}
+	},
+	 data() {
+		return {
+			title: "IssueChecker",
+			currentDate: null,
+			isFetching: false,
+			openissuescount: null
+		}
+	},
+	computed: {
+	},
+	watch: {
+	},
+	mounted() {
+		this.getOpenIssuesCount();
+	},
+	 methods: {
+
+		getOpenIssuesCount() {
+			this.isFetching = true;
+			this.$api.call(
+				this.endpoint.countPersonOpenIssues(this.person_id)
+			)
+			.then(result => {
+				//this.$emit('issuesLoaded', this.issues);
+				this.openissuescount = result.data.openissues;
+				this.isFetching = false;
+			})
+			.catch(this.$fhcAlert.handleSystemError);
+		},
+		checkPerson() {
+			this.isFetching = true;
+			this.$api.call(
+				this.endpoint.checkPerson(this.person_id)
+			)
+			.then(result => {
+				//this.$emit('issuesLoaded', this.issues);
+				this.openissuescount = result.data.openissues;
+				this.isFetching = false;
+			})
+			.catch(this.$fhcAlert.handleSystemError);
+		},
+	 },
+	 template: `
+		<div class="px-2">
+			<h4 class="mb-1">Issues<a class="refresh-issues" title="erneut prüfen" href="javascript:void(0);" @click="checkPerson"><i class="fas fa-sync"></i></a></h4>
+			<h6 v-if="!isFetching" class="text-muted">{{ openissuescount }}</h6>
+			<h6 v-else class="mb-2"><p-skeleton v-if="isFetching" style="width:45%"></p-skeleton></h6>
+		</div>
+	 `
+}
diff --git a/system/phrasesupdate.php b/system/phrasesupdate.php
index e1568b97e..2b8bc28b6 100644
--- a/system/phrasesupdate.php
+++ b/system/phrasesupdate.php
@@ -52310,6 +52310,25 @@ I have been informed that I am under no obligation to consent to the transmissio
 		)
 	),
 	// ### Personen zusammenlegen Phrasen END
+	array(
+		'app' => 'core',
+		'category' => 'ui',
+		'phrase' => 'error_invalidId',
+		'insertvon' => 'system',
+		'phrases' => array(
+			array(
+				'sprache' => 'German',
+				'text' => 'Id {id} ungültig',
+				'description' => '',
+				'insertvon' => 'system'
+			),
+			array(
+				'sprache' => 'English',
+				'text' => 'Invalid Id {id}',
+				'description' => '',
+				'insertvon' => 'system'
+			)
+		)
 );