IndexError on Trying to Edit Entry #345

Traceback (most recent call last):
  File "/usr/lib/webapp-manager/webapp-manager.py", line 366, in on_edit_button
    selected_browser_index = [idx for idx, x in enumerate(web_browsers) if x.name == self.selected_webapp.web_browser][0]
                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
IndexError: list index out of range
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 228, in partial_apport_excepthook
    return apport_excepthook(binary, exc_type, exc_obj, exc_tb)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 144, in apport_excepthook
    os.open(pr_filename, os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o640), "wb"
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/var/crash/_usr_lib_webapp-manager_webapp-manager.py.1000.crash'

Original exception was:
Traceback (most recent call last):
  File "/usr/lib/webapp-manager/webapp-manager.py", line 366, in on_edit_button
    selected_browser_index = [idx for idx, x in enumerate(web_browsers) if x.name == self.selected_webapp.web_browser][0]
                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
IndexError: list index out of range