I am happy to report that Grade Passing essentially work. That is, the grades on Canvas are being updated as the students answer the questions.
However, we get an error when we try to update the grades "manually" via the LTI Grade Update tab in WebWork. I think the interesting part of the error message is the following:
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WeBWorK error
An error occured while processing your request.
For help, please send mail to this site's webmaster, including all of the following information as well as what what you were doing when the error occured.
Error record identifier
549f1681-5177-5eb9-ab04-1ba9d8f37a54::31dbc3e8-5523-11ef-8376-9b896ba8681a
Error messages
DBD::SQLite::db do failed: SQL logic error at /usr/share/perl5/Mojo/SQLite.pm line 118.
Context
113: sub _prepare {
114: my $self = shift;
115:
116: # Automatic migrations
117: ++$self->{migrated} and $self->migrations->migrate
118: if !$self->{migrated} && $self->auto_migrate;
119:
120: my $parent = $self->parent;
121: return $parent ? $parent->_prepare : $self->_dequeue;
122: }
123:
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It complaints about line 118 above.
Any idea of what went wrong? Thanks for taking the time to look into this.