Add unknown event translation

1 job for sli in 3 minutes and 38 seconds (queued for 6 seconds)
Status Job ID Name Coverage
  Test
failed test #311

00:03:38

 
Name Stage Failure
failed
test Test There is an unknown failure, please try again

----------------------------------------------------------------------
Ran 19 tests in 7.415s

FAILED (failures=6, errors=3)
Custom settings failed
Creating test database for alias 'default'...
Destroying test database for alias 'default'...
ERROR: Build failed: exit code 1