Keychain password error when uploading extension

Hi everyone,


I'm looking to publish a Safari Extension and having some issues. On the extension builder, when I click ‘Build Package’ and attempt to save the file a dialog box pops up requesting my keychain password.


The password field can’t be clicked and causes Safari to freeze and crash.


Has anyone encountered this problem before and know how to solve it? I’ve tried contacting Apple but they’re being extremely difficult.


Thanks for all your help in advance and I’m happy to share screenshots if that also helps.