you can help me?
how do I find the parameters of the FB link?
If the login to the file are characters like "@" or "%" how can I convert them so that the URL is executed?
What is the 'FB link' you ask about?
If the login contains forbidden characters in a URL then either you ned to remove them, or ask someone with more knowledge than me about URL addresses, sorry.
If you change the login to only have 'standard' characters, can you prove that it works?
What part is not working for you?