By some reason the Journal mentioned in the title is no longer covered by the AMS Math. Reviews. On the MathSciNet web page it says:

Last Issue: 24, no. 1  2014

Indexed cover-to-cover

Status: No longer indexed

The journal, however, still exists and it is still covered by the Zentralblatt. I have written to the journal and the AMS several times already and asked for the reason why the AMS doesn't review this journal any more and I have got no answer from either side!

Does someone know why this journal is no longer indexed?