Error while saving the edit page schema

Hi Sivaranjani,



The most possible reasons for the issue are: 



1) Empty ParentId for the module that the parent should have (you should deploy the OOB DB check with a query)



SELECT * FROM SysSchema

WHERE ManagerName = 'EntitySchemaManager'

AND ParentId IS NULL



set of return values on the box and on the site with the problem. If it is different, then delete such objects from the system (DELETE FROM SysSchema)



2) empty metadata for some object/scheme in the system. 



SELECT Id, CAST (MetaData AS varchar (MAX)) FROM SysSchema

WHERE CAST (MetaData AS varchar (MAX)) = ''



You can also look in the application logs in the Common and Error log files for whether additional information on the generation of statics has been recorded (usually the error should be signed there with details). And you can also directly filter all schemes by the "Has error" filter in the configuration:

and see if any objects in the list are returned. If yes, then "Last error message" will be filled on the object in "Properties":

and

Best regards,

Bogdan