Fix some typos in the code

* Fix 'succesful'
* Fix 'errrorMessage'
* Fix the the typo
3 jobs for fix/typo in 4 minutes and 35 seconds (queued for 46 minutes and 33 seconds)
Status Job ID Name Coverage
  Test
passed #67765
build

00:01:51

passed #67763
clazy

00:01:53

passed #67764
qmllint

00:00:50