Your authentication setup is incorrect on the external gateway Thu Mar 14 00:46:45 2024 [CGwMngData::isExternalGatewayLinked] +966509345978@fmc.stc.com.sa NOT found in the dictionnary. Thu Mar 14 00:46:45 2024 [isDomainFromExtGw] Host from request is : fmc.stc.com.sa. Thu Mar 14 00:46:45 2024 [isDom...
not my expertise, but I would assume if site A is connected to site B, and you change site A , then you need to change site B also.
try 2 switch at the same time and see if this fixes the issue.