There are frequent uploading errors if the "name" or "description" field contains certain characters.

"test, test" ==> OK
"test' test" ==> Error
"test" test" ==> OK (but the quotation mark is displayed as \")

In the case of apostrophe, the error message is "Error: database returned invalid result at time" followed by a 10-digit number. The resultion uploaded solution has title "", contains no description text and cannot be downloaded.