diff --git a/typo3/sysext/linkvalidator/Classes/LinkAnalyzer.php b/typo3/sysext/linkvalidator/Classes/LinkAnalyzer.php
index 548e786bd34b869e05e31146ab6466dfb5341286..6378c1a6c849f1d915e52884be5553b0cb65d9e6 100644
--- a/typo3/sysext/linkvalidator/Classes/LinkAnalyzer.php
+++ b/typo3/sysext/linkvalidator/Classes/LinkAnalyzer.php
@@ -244,7 +244,7 @@ class LinkAnalyzer
 
                 // Broken link found
                 if (!$checkUrl) {
-                    $this->brokenLinkRepository->addBrokenLink($record, false, $hookObj->getErrorParams());
+                    $this->brokenLinkRepository->addBrokenLink($record, false, $hookObj->getErrorParams() ?: []);
                     $this->brokenLinkCounts[$table]++;
                 }
             }
diff --git a/typo3/sysext/linkvalidator/Classes/Linktype/AbstractLinktype.php b/typo3/sysext/linkvalidator/Classes/Linktype/AbstractLinktype.php
index 845222860d83dd2d75ae7c8765ab603b7b4ae350..78f4d945b6d205dbb9eaf27327e3d9c45f1c2a14 100644
--- a/typo3/sysext/linkvalidator/Classes/Linktype/AbstractLinktype.php
+++ b/typo3/sysext/linkvalidator/Classes/Linktype/AbstractLinktype.php
@@ -70,6 +70,7 @@ abstract class AbstractLinktype implements LinktypeInterface
      * Get the value of the private property errorParams
      *
      * @return array All parameters needed for the rendering of the error message
+     * @todo change return type to array in TYPO3 v13
      */
     public function getErrorParams()
     {
diff --git a/typo3/sysext/linkvalidator/Classes/Linktype/ExternalLinktype.php b/typo3/sysext/linkvalidator/Classes/Linktype/ExternalLinktype.php
index dba7457613f1b585d8bdf05f1c10bbfcc85abb85..a6b02614e10a11b9d956a3bcf392428246ee5fb4 100644
--- a/typo3/sysext/linkvalidator/Classes/Linktype/ExternalLinktype.php
+++ b/typo3/sysext/linkvalidator/Classes/Linktype/ExternalLinktype.php
@@ -252,11 +252,15 @@ class ExternalLinktype extends AbstractLinktype
      *
      * @param array $errorParams All parameters needed for the rendering of the error message
      * @return string Validation error message
+     * @todo change input parameter type to array in TYPO3 v13
      */
     public function getErrorMessage($errorParams)
     {
         $lang = $this->getLanguageService();
         $errorType = $errorParams['errorType'] ?? '';
+        if ($errorType === '') {
+            return $lang->getLL('list.report.noinformation');
+        }
         switch ($errorType) {
             case self::ERROR_TYPE_HTTP_STATUS_CODE:
                 switch ($errorParams['errno'] ?? 0) {
diff --git a/typo3/sysext/linkvalidator/Classes/Linktype/FileLinktype.php b/typo3/sysext/linkvalidator/Classes/Linktype/FileLinktype.php
index cbeb51bd5cc90c164c5d48a2c6c782f7b75635f8..aeb3760249371bda620380e25a07e7211de8eecc 100644
--- a/typo3/sysext/linkvalidator/Classes/Linktype/FileLinktype.php
+++ b/typo3/sysext/linkvalidator/Classes/Linktype/FileLinktype.php
@@ -66,6 +66,7 @@ class FileLinktype extends AbstractLinktype
      *
      * @param array $errorParams All parameters needed for the rendering of the error message
      * @return string Validation error message
+     * @todo change input parameter type to array in TYPO3 v13
      */
     public function getErrorMessage($errorParams)
     {
diff --git a/typo3/sysext/linkvalidator/Classes/Linktype/InternalLinktype.php b/typo3/sysext/linkvalidator/Classes/Linktype/InternalLinktype.php
index c2df790ddde694529ecc25a10e52a0bd7f06ed19..90423e81ae860f5d4607b797a3a69d708ebc3804 100644
--- a/typo3/sysext/linkvalidator/Classes/Linktype/InternalLinktype.php
+++ b/typo3/sysext/linkvalidator/Classes/Linktype/InternalLinktype.php
@@ -229,13 +229,18 @@ class InternalLinktype extends AbstractLinktype
      *
      * @param array $errorParams All parameters needed for the rendering of the error message
      * @return string Validation error message
+     * @todo change input parameter type to array in TYPO3 v13
      */
     public function getErrorMessage($errorParams)
     {
+        $lang = $this->getLanguageService();
+        $errorType = $errorParams['errorType'] ?? '';
+        if ($errorType === '') {
+            return $lang->sL('LLL:EXT:linkvalidator/Resources/Private/Language/Module/locallang.xlf:list.report.noinformation');
+        }
+
         $errorPage = null;
         $errorContent = null;
-        $lang = $this->getLanguageService();
-        $errorType = $errorParams['errorType'];
         if (is_array($errorParams['page'] ?? false)) {
             switch ($errorType['page']) {
                 case self::DELETED:
diff --git a/typo3/sysext/linkvalidator/Classes/Linktype/LinktypeInterface.php b/typo3/sysext/linkvalidator/Classes/Linktype/LinktypeInterface.php
index 3c3a322d2d56e4184644b7258da00a7d76930084..fe3b77c1fc1e383834b927e962fee506ff01717b 100644
--- a/typo3/sysext/linkvalidator/Classes/Linktype/LinktypeInterface.php
+++ b/typo3/sysext/linkvalidator/Classes/Linktype/LinktypeInterface.php
@@ -52,6 +52,7 @@ interface LinktypeInterface
      * Get the value of the private property errorParams.
      *
      * @return array All parameters needed for the rendering of the error message
+     * @todo change return type to array in TYPO3 v13
      */
     public function getErrorParams();
 
@@ -60,6 +61,7 @@ interface LinktypeInterface
      *
      * @param array $row Broken link record
      * @return string Parsed broken url
+     * @todo change input parameter type to array in TYPO3 v13
      */
     public function getBrokenUrl($row);
 
diff --git a/typo3/sysext/linkvalidator/Classes/Repository/BrokenLinkRepository.php b/typo3/sysext/linkvalidator/Classes/Repository/BrokenLinkRepository.php
index 7507303c394865be7d8d05496ae9e28de541b9b5..e1dcdb929ec731dfef93b48b191f55f13de22fdd 100644
--- a/typo3/sysext/linkvalidator/Classes/Repository/BrokenLinkRepository.php
+++ b/typo3/sysext/linkvalidator/Classes/Repository/BrokenLinkRepository.php
@@ -317,12 +317,20 @@ class BrokenLinkRepository
         return $results;
     }
 
+    /**
+     * Add broken link to table tx_linkvalidator_link
+     *
+     * @param array $record
+     * @param bool $isValid
+     * @param array|null $errorParams
+     * @throws \InvalidArgumentException
+     * @throws \UnexpectedValueException
+     * @todo Make default value of $errorParams [] instead of null and add strict typing in v13
+     */
     public function addBrokenLink($record, bool $isValid, array $errorParams = null): void
     {
         $response = ['valid' => $isValid];
-        if ($errorParams) {
-            $response['errorParams'] = $errorParams;
-        }
+        $response['errorParams'] = $errorParams ?? [];
         $record['url_response'] = json_encode($response);
         GeneralUtility::makeInstance(ConnectionPool::class)
             ->getConnectionForTable(self::TABLE)