Failed to render chart with Error message: ReferenceError: Highcharts is not defined

With latest Chrome(Version 91.0.4472.114(Official Build)(32-bit)), eazyBI for Jira(version 6.2.2:jira1n3prd).

When I tried to open the predefined dashboard, it showed this error popup:

Please help, thx!

​Please clear your browser cache and reload the eazyBI page (Clear cache & cookies - Computer - Google Account Help)
In rare cases, such an error may appear after the eazyBI plugin upgrade.

Janis Vanags