Blackboard, Desire2Learn (D2L) and Moodle have an issue with Cyrillic characters in its description field for an LTI link that produces the errors below:
u'\u0410'
u'\u0431'
u'\u041d'
For instructions on editing the Description field in Blackboard, see the FAQ How do I edit the Description field for my LTI link in Blackboard?
For instructions on editing the Description field in D2L, see the FAQ How do I edit the Description field for my LTI link in Desire2Learn (D2L)?
For instructions on editing the Description field in Moodle, see the FAQ How do I edit the Description field for my LTI link (also called the Activity Description) in Moodle?
Since this is an issue with your learning management's description field, we encourage you to report this issue directly to your learning management.