I keep getting this, any ideas??Recently, we see the suggestion, that there is an end in sight.Whoops, that's an error! (bX-w7tr63)
Blogger Engineering is testing some fixes, in Draft Blogger, that may resolve some of the more common causes of this ubiquitous error code.
This is one of the most persistent error codes, being reported in the forums.
If you are affected by a w7tr63 problem, you may first try temporarily using the Draft Blogger dashboard.
If you only use "draft.blogger.com" temporarily, you can return to a normal state, by using "www.blogger.com", any time you wish.
If you try Draft Blogger, and decide that it is helping you, you can select "Make Draft Blogger my default", and your normal login will redirect to Draft Blogger. In that case, you can de select "Make Draft Blogger my default", to return to normal Blogger, if you ever need.
Note as always, that Draft Blogger is a testing environment - and should be used, selectively.
Given the importance of the bX-w7tr63 problems, that's hopefully all that is currently being tested in Draft. Most likely, Blogger Engineering will test the specific fixes, then move those fixes to Production Blogger - and hopefully, will let us know when their fixes are given production status.