Getting error on Skuid tabs in new Sandbox

Hi All,

we are getting this below error on every standard Skuid tabs and pages,

Encountered premature end of XML: no more data available - expected end tags </model></models></skuidpage> to close start tag <model> from line 3 and start tag <models> from line 2 and start tag <skuidpage> from line 1, parser stopped on START_TAG seen ...y="true" limit="25" type="" doclone="" datasource="salesforce">\n ... @4:3


We just got a new sandbox refreshed from another sandbox.
we are not able to open any custom skuid page or even any tabs like Skuid Central, Pages , Page Assignment etc.

P;ease help me to resolve this issue.

Regards,
Akanksha