error/mod peerwork/calcmissing
From MoodleDocs
This error can occur if one of the following conditions exist:
- The calculator plugin has been disabled by an administrator.
- The calculator plugin has been uninstalled by an administrator.
- The activity has been restored to a Moodle instance which does not include the calculator plugin used.
It is possible to select an alternative calculator from the activity settings. However, please be aware that this may alter the grades that the students have been awarded.
