It would be useful to include this fix in the fork on the main COPS branch.
https://github.com/seblucas/cops/pul...e475dcea3a6f3f
This fixes the invalid OPDS which causes PocketReader on Android to fail to read the feed properly.
I've manually added the patch, but others running PocketBook on Android may also run into this error, so worth fixing on the main branch.