For the first problem of the lengthy URL, could you please run this database query in PHP My Admin?
I have made that change in the upcoming XMG 2.1.
For the second problem, it looks like that one might not have been parsed properly but that could be down to the Sound Cloud BB Code you're using or some issue communicating with Sound Cloud or something like that. I can't help too much with that because all we display is the HTML generated by the BB Code system.
That being said, after making the change above and trying with your original URL that threw the error:
It seems to work fine.
Code:
ALTER TABLE xengallery_media CHANGE media_tag media_tag TEXT DEFAULT NULL
I have made that change in the upcoming XMG 2.1.
For the second problem, it looks like that one might not have been parsed properly but that could be down to the Sound Cloud BB Code you're using or some issue communicating with Sound Cloud or something like that. I can't help too much with that because all we display is the HTML generated by the BB Code system.
That being said, after making the change above and trying with your original URL that threw the error:
It seems to work fine.