Problems while searching for a new upstream version

package:
gnukhata-core-engine
severity:
high
created:
2017-11-21
last updated:
2019-10-23

uscan had problems while searching for a new upstream version:
In debian/watch no matching files for watch line
  https://gitlab.com/gnukhata/core_engine/tags .*/archive.tar.gz\?ref=(.*)