After changing the default language of a site I can no longer create objects

Issue

• Changing the default language on a site leads to an error when creating an object.
• The UI shows this error:

  Unexpected token '<',"<!DOCTYPE "... is not valid JSON

Environment

• Liferay DXP 7.4

Resolution

• This issue is being addressed by LPS-164070.
• Please update to Liferay DXP 7.4 Update 50+.
• Or request a Hotfix that includes LPS-164070 to resolve the issue.

Additional Information

• Installing Fix Packs and Hotfixes on Liferay DXP