FIX #16992 TIME 0:10 Error when delete connector that is not used

src/app/externalSignatoryBook/controllers/ExternalSignatoryBookController.php

@@ -211,11 +211,13 @@ class ExternalSignatoryBookController
         ]);
         $currentDocumentsId = array_column($workflows, 'main_document_id');
 
-        $documents = DocumentModel::get(['select' => ['typist', 'title', 'id'], 'where' => ['id in (?)'], 'data' => [$currentDocumentsId]]);
-        foreach ($documents as $document) {
-            $process = WorkflowController::interruptProcess(['id' => $document['id'], 'documentTypist' => $document['typist'], 'documentTitle' => $document['title']]);
-            if (!empty($process['errors'])) {
-                return $response->withStatus(400)->withJson(['errors' => $process['errors']]);
+        if (!empty($currentDocumentsId)) {
+            $documents = DocumentModel::get(['select' => ['typist', 'title', 'id'], 'where' => ['id in (?)'], 'data' => [$currentDocumentsId]]);
+            foreach ($documents as $document) {
+                $process = WorkflowController::interruptProcess(['id' => $document['id'], 'documentTypist' => $document['typist'], 'documentTitle' => $document['title']]);
+                if (!empty($process['errors'])) {
+                    return $response->withStatus(400)->withJson(['errors' => $process['errors']]);
+                }
             }
         }