First off, I would make sure you have a backup of the database before you do anything.

Then you can try:

1)  Remove all the views indexes from the database using compact -D (https://www.ibm.com/support/knowledgecenter/en/SSKTMJ_9.0.1/admin/tune_compactoptions_r.html)

2) Purge all deletion stubs (https://www-01.ibm.com/support/docview.wss?uid=swg21095683)

3) Enable LZ1 compression, design compression and document compression using compact -c -v -n -ZU

4) Enable DAOS using compact -c -daos on

5) Move the view indexes to disk using compact -c -nifnsf (must have it enabled first http://blog.nashcom.de/nashcomblog.nsf/dx/current-information-about-nifnsf.htm)

There is usually no Fix for this issue.  You should restore the last good backup for the file, and then trim out the file so that you do not run over the 64gig limit.  You can use DAOS to shrink the file size, but, if DAOS is used, then when you try to restore the file from DAOS, it will exceed the limit, so you must still remoe documents from the file.  You can create an Archive as well to move ome documents.