Thank you for the update!
I installed the beta without error, and now I receive this on all existing and new dashboards:
Zabbix plugin failed
Error: Fetch error: 404 Not Found Instantiating http://zabbix.vtcri.local:3000/public/app/core/utils/datemath Loading http://zabbix.vtcri.local:3000/public/plugins/alexanderzobnin-zabbix-app/datasource-zabbix/module.js Loading plugins/alexanderzobnin-zabbix-app/datasource-zabbix/module
I updated the Zabbix plugin to the latest as well and have restarted all related services. The error still persists.
Thanks!