whats going on here
The number one reason of this is network traffic, even we include a high fee on our transaction theirs will be a possibility that our transaction will stuck because of network traffic.
You can try :
https://www.viabtc.com/tools/txaccelerator/ to accelerate your transaction and wait until viabtc mined another block.
bullshit site this crap has already reached its limit, lol
instead then if you don't mind paying a fee. Your transaction will be confirmed anyway, has it gone 24 hours already from the time you sent your transaction?