Client receives “HTTP Error while proving pow. returned 902” message (POW Expired/doesn’t exist)

This means your Albion Online Data client is taking too long to send data to our servers. This is slowed down on purpose because we ask your computer to do some math that our server already has the answer to. We needed to add this because bad actors/spammers were sending us bad data and this slowed them down. With that, we wanted to make sure we didn’t eat up all CPU cycles on your machine, so we limit it to 25% CPU.

If you wish to bypass this and let your entire CPU be consumed while searching Albion Online markets, you can add the -no-limit parameter when running the Albion Online Data client manually. But… (read next section)