Posts grid PRO – Filter ALL doesn’t work

Hi,

after upgraded the free plugin to premium posts grid filters encountered the issue. When click on ALL option it stucks and loading never stop. The error I get in the console is:

Uncaught SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at Function.n.parseJSON (jquery.js?ver=1.12.4-wp:4)
at LAE_Grid._doAjaxBlockProcessResponse (lae-blocks.min.js?ver=4.5:1)
at Object.success (lae-blocks.min.js?ver=4.5:1)
at i (jquery.js?ver=1.12.4-wp:2)
at Object.fireWith [as resolveWith] (jquery.js?ver=1.12.4-wp:2)
at x (jquery.js?ver=1.12.4-wp:4)
at XMLHttpRequest.c (jquery.js?ver=1.12.4-wp:4)

Can you help with that? It is very important.

Thanks,

Emil