Tags may only contain letters, spaces and one numeric digit, i really need help i keep getting this

[damster3]

hello guys,

today i made this fiverr account and trying to start selling, but i keep getting this error i typed in the tags section #instagram #followers #fastservice can you please tell me what’s wrong with it?

[Guest dilshands]

Don’t use #. Just write the words you want to use as tags!