Issue #3495308: TypeError: strtr(): Argument #1 ($string) must be of type string

src/Entity/WorkflowTransition.php

@@ -465,7 +465,9 @@ class WorkflowTransition extends ContentEntityBase implements WorkflowTransition
     /*
      * Get the object and its permissions.
      */
-    $config_transitions = $this->getWorkflow()->getTransitionsByStateId($this->getFromSid(), $this->getToSid());
+    $from_sid = $this->getFromSid();
+    $to_sid = $this->getToSid();
+    $config_transitions = $this->getWorkflow()->getTransitionsByStateId($from_sid, $to_sid);
 
     /*
      * Determine if user has Access.
@@ -477,7 +479,7 @@ class WorkflowTransition extends ContentEntityBase implements WorkflowTransition
 
     if ($result == FALSE) {
       // @todo There is a watchdog error, but no UI-error. Is this OK?
-      $message = $this->t('Attempt to go to nonexistent transition (from %sid1 to %sid2)');
+      $message = "Attempt to go to nonexistent transition (from $from_sid to $to_sid)";
       $this->logError($message);
     }