Error reading from database - Unknown column 'q.category' in 'on clause'

[jprovasnik]

Hello, Using Moodle 4.1 on Workplace, the plugin works fine with the exception of adding a "question" to the Content Page activity -- as soon as the Add a question button is clicked, a Error reading from Database message appears. A was question was already created at the course-level question bank, but I could not access it:

URL: https://judemigration.unhosting.site/mod/icontent/addquestionpage.php?id=32137&pageid=2

Content Pages Sample: Add new question
Error reading from database
More information about this error

Debug info: Unknown column 'q.category' in 'on clause'
SELECT q.id, q.qtype, q.name, q.timecreated, q.timemodified, q.createdby, q.modifiedby, c.contextid
FROM mdl_question q
JOIN mdl_question_categories c
ON c.id = q.category
WHERE c.contextid = ?
AND q.qtype IN (?,?,?,?)
ORDER BY q.name ASC LIMIT 0, 20
[array (
0 => 134013,
1 => 'essay',
2 => 'match',
3 => 'multichoice',
4 => 'truefalse',
)]
Error code: dmlreadexception×Dismiss this notification
Stack trace:
line 494 of /lib/dml/moodle_database.php: dml_read_exception thrown
line 293 of /lib/dml/moodle_read_slave_trait.php: call to moodle_database->query_end()
line 1282 of /lib/dml/mysqli_native_moodle_database.php: call to mysqli_native_moodle_database->query_end()
line 546 of /mod/icontent/locallib.php: call to mysqli_native_moodle_database->get_records_sql()
line 85 of /mod/icontent/addquestionpage.php: call to icontent_get_questions_of_questionbank()