Bamboo fails to load/create branches in plan

Running into strangeness trying to run a build plan. First encountered this message:

(java.lang.RuntimeException : Could not generate next build number for 'MCSCIAPI-MCSCIAPISYSTEMRELEASEBUILD70')

So I deleted the branch I was trying to run. Now, it will not allow me to manually create a branch, nor does it bring up the dialog box with available branches in Bitbucket.

The attached screen print describes what I see instead of a dialog box.

I realize there is an issue with a recent upgrade. Just wanted to make sure this issue was addressed as well.