Import via Cron Job is Stuck

Hi,

My import via cron has become stuck and now says:

currently processing with cron
Records Processed 12470
last activity 1 hour ago

When I go to the processing URL it says:

{"status":403,"message":"Import #53 already processing. Request skipped."}

Do I need to retrigger the import? Or what would be the procedure to get the import to finish?

Thanks