Deleted two topics from two different boards. This produced the attached error log. The topics do successfully delete and move to a recycle board and produce the error. When deleting individual posts, the posts move to the recycle board and do not produce an error.
Well we missed a /e :P will fix (harmless error, just php complaining that its a depreciated function and will be removed and in preparation of that removal, they felt it was a great idea to annoy the crap out of anyone using it)
ETA: should be fixed here https://github.com/Spuds/Elkarte/commit/eb5f8fd3c0d2a24c6ffc2d7f74e3fb5bcecd6aa2