Merged in bugfix/PMC-895 (pull request #6958)

PMC-895

Approved-by: Julio Cesar Laura Avendaño <contact@julio-laura.com>

workflow/engine/src/ProcessMaker/BusinessModel/ActionsByEmail/ResponseReader.php

@@ -132,6 +132,7 @@ class ResponseReader
                 foreach ($mailsIds as $key => $mailId) {
                     /** @var IncomingMail $mail */
                     $mail = $mailbox->getMail($mailId, false);
+                    if (!empty($mail->textPlain)) {
                         preg_match("/{(.*)}/", $mail->textPlain, $matches);
                         if ($matches) {
                             $dataEmail = G::json_decode(Crypt::decryptString($matches[1]), true);
@@ -177,6 +178,7 @@ class ResponseReader
                         }
                     }
                 }
+            }
         } catch (Exception $e) {
             Bootstrap::registerMonolog(
                 $this->channel,