When you have different people installing add-ons in JIRA, you can, at times, run into problems, but you might be unsure as to which add-on has caused a certain problem. In these cases, you can use the method of elimination; however, you should first disable all the add-ons, and re-enable them one at a time.
Enabling safe mode will impact your users, so make sure you plan accordingly before doing so.
Perform the following steps to enable safe mode:
The window looks like the following screenshot:
The Universal Plugin Manager (UPM) is what JIRA uses to manage all its add-ons. Other than being the interface that allows you to upload and install third-party add-ons (unless instructed otherwise), it also provides a number of other useful administrative features.
When you enable the safe mode option, the UPM will disable all user-installed add-ons, which returns JIRA to a vanilla state. You can then individually enable each add-on, thus finding the problematic add-on via the method of elimination.