ERP settings page is inaccesible

The settings page has become inaccessible in the last couple WordPress updates, it’s just stuck in the loading spinner endlessly and there is no way to bypass this, returning to a previous version won’t fix the error, I have tested this with other plugins installed and just with the ERP alone and still persist.

When inspecting the console on the Firefox inspection tools, I get the following errors:

[vue-router] Named Route 'CrmContactFormLayout' has a default child route. When navigating to this named route (:to="{name: 'CrmContactFormLayout'"), the default child route will not be rendered. Remove the name from this route and use the name of the default child route for named links instead.

[vue-router] <router-link>'s tag prop is deprecated and has been removed in Vue Router 4. Use the v-slot API to remove this warning: https://next.router.vuejs.org/guide/migration/#removal-of-event-and-tag-props-in-router-link.

Several other parts of the plugin are broken as well, but this one is the most critical.

The page I need help with: [log in to see the link]