Help me!
I try to sign that message but every time when I check just after I got error message
Why is the Bitcoin address linked?
As far as I know, the forum does not do this automatically. Did you do it on purpose or did it happen during the transmission here?
Also, you transferred the [/size] tag, which can introduce additional confusion.
It seems to me that you made a mistake in the transfer of the text, and copy/paste mess, so I would start checking from there.
It is probably better to use the CODE tag to post signed messages here
Which wallet do you use for sign messages?