Javascript error preventing plugin to showing statistics

I am using this plugin in one of the site but none of the dashboards are working due to javascript error. Screenshot – https://prnt.sc/155d463

Uncaught SyntaxError: Unexpected token u in JSON at position 0
at JSON.parse (<anonymous>)
at Object.h.error_meta_box_data (admin.min.js?ver=13.0.8:1)
at Object.error (admin.min.js?ver=13.0.8:1)
at c (jquery.min.js?ver=3.5.1:2)
at Object.fireWith [as rejectWith] (jquery.min.js?ver=3.5.1:2)
at l (jquery.min.js?ver=3.5.1:2)
at XMLHttpRequest.<anonymous> (jquery.min.js?ver=3.5.1:2)

• This topic was modified 3 years, 5 months ago by webcolor.
• This topic was modified 3 years, 5 months ago by webcolor.