Overview

When clearing the cache in Drupal, the following error sometimes occurred.

InvTeeChnnhetdeocssrkee/Errbxvviciinecc/peedtri""uoausncshOcenercIs.rnsdv_aactlhaie"dc.Rke.fceornetnaccetB_ephearvsioonraPla"ssh.apshpaldienpeen8d8e:ncyonanon-exist

Here are my notes on how to resolve this error.

References

The following was helpful.

https://www.drupal.org/forum/support/upgrading-drupal/2018-04-26/after-upgrade-to-853-the-service-access_checkcontact

Solution

A module named user had been created by the Features module.

/modules/custom/user

Deleting this resolved the error.

Additional Note

Similarly, a module named comment was also causing issues. Deleting it likewise resolved the error.

Summary

I hope this helps others experiencing the same error.