There is a bug in rewards withdrawal affecting users who voted and are eligible for Catalyst Fund 5 rewards. These users are currently unable to withdraw their rewards.The fix will be available by the next epoch (287) Update news · vacuumlabs/adalite@4db74f4 · GitHub
I had same issue. And i also contacted to Yoroi Support Team. Until now they have not had solution yet but just try again ,i recommend 1 time per day. After trying 2 times (2 days), my issue has been solved.
And if you want to withdraw as soon as possible, then you don’t need to wait Yoroi to work.
You can restore your current wallet on Daedalus and try to withdraw again. 100% OK.