Bamboo plan doesn't get triggered after commit happens to the bitbucket repo, trigger has been set in bamboo and it used to work before.
Now suddenly its not triggering the build once changes in the repo happens.
Did you change any configuration in your network lately? These trigger issues are usually related to application links malfunction. Could you please go to Cog icon>>Overview>>System information, look for the "Linked Bitbucket Server instances" section and check if the "Remote events status" is "Working"?
If you suspect that the application link is not working as it supposed to be, please follow the troubleshooting steps found in the below documentation and let us know if you have any specific question.