Goodday I am trying to upgrade from koha 20.11 to 22.11. after upgrade i am getting below error on cataloguing search. Anyone please help. Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request Reason: *Error reading from remote server* ------------------------------ Apache/2.4.52 (Ubuntu) Server at 10.12.1.48 Port 8888 Regards Farai -- *The information transmitted by this email is intended only for the person or entity to which it is addressed. This email may contain proprietary, business-confidential, and/or privileged material. If you are not the intended recipient of this message, be aware that any use, review, retransmission, distribution, reproduction or any action taken in reliance upon this message is strictly prohibited. If you received this in error, please contact the sender and delete the material from all computers*