flash-driven upload doesn't work at all

[Shemo]

Hi,

I'm trying to get my bridged (with mybb) gallery all buttoned up before I let others know about it, but upon testing, I cannot seem to get the flash-driven upload to work at all.  these photos are very small in size (less than 10kb) so I'm pretty sure it's not a memory issue.  when the flash uploader throws an error, it shows a blank error message in the popup window which can be seen in the attachments.  the single file uploader does however work normally.

here's the gallery url:
http://paforliberty.com/gallery

test account:
username-testing
password- tester123

[Αndré]

When I try to upload a file with the flash uploader I get

Upload Error: 502

Please google for that HTTP error code for more information.

[Shemo]

When I try to upload a file with the flash uploader I get
Please google for that HTTP error code for more information.

saw something about bad gateway errors with the 502 error, but how would I go about actually fixing this within coppermine?  do you have any suggestions?  I'm new to coppermine so I'm too familiar with things yet.

[Αndré]

how would I go about actually fixing this within coppermine?  do you have any suggestions?

No, sorry. I suggest to talk to your hosting provider after reading that short article.