Unable to create/update service and properties in shape/template/thing
Hi ,
I have created new property/service in one shape. after reloading the composer or clicking on cancel and again edit , the created property or service is there in shape.
while saving service or property I am getting Following error.
save failed, status: Internal Server Error message: Import Failed: Unable to update thing shape: [1,018] Data store unknown error: [Error occurred while accessing the model provider.]
Few days back It works works but now I am unable to create/update new property or service or any changes in any entity(things, templates, shapes ...etc) in thingworx.
My thingworx version is 8, I am using Postgres as DB, tomcat version is 8.0.45.
I am getting below errors while saving any entity.

Getting following errors in application logs:
[message: [1,018] Data store unknown error: [Error occurred while accessing the property provider.]].
[context: com.thingworx.webservices.context.HttpExecutionContext@7160f1c4][message: Unable To Update Entity: TestShapeGroup was modified on 2017-10-30T10:58:56.070+05:30]
Failed to load properties for Thing (SampleTestThing) from default property provider
Please help me.
