Mid server is down post Zurich update

[kiran kumar m1]

We have upgraded to Zurich , post update our mid server is down and and its throwing an error 

can anyone explain what this error means ?

[Tanushree Maiti]

Hi @kiran kumar m1 ,

We got same issue in one of our earlier  patch/upgrade.

• Open the Mid server record
•  Navigate to the MID Server Issues table (Related List) within your ServiceNow instance to identify the specific errors.
• Try invalidating and then re-validating the MID server record to refresh its connection.

It will work fine.

still check this KB:https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0596459