The Whales pool support said that the lolminer is sending too many requests to the server and the Cloudflare is therefore blocking it (sometimes). Could you please fix lolminer ASAP?
The issue here is that the miner needs to send a share as soon as it finds, if not then another gpu will find the block and get the rewards, the first to send the share is the one who claims the block, in this case some are getting blocks and cloudflare is blocking it. The whales pool needs to send an email to cloudflare and sort it out, not sure if this is a miner issue, miner is doing the right thing, sending as fast as possible and getting work as fast as possible.