i fought that for 3 weeks then managed to get though. i think it was on safari browser.. but i tried every browser many times in that 3 week period and it would just throw 500 errors getting past that first search step. one thing that might have been affecting it is i block a bunch of tracking endpoints at my firewall and the only time it did actually work i was resolving and passing information to both google and facebook urls... makes sense to have the line6 sites ability to collect support tickets completely dependent on ad trackers... but again.. we arent here because of programming excellence. try switching to 8.8.8.8 on your dns and having your access wide open when you try to get the ticket submitted.. maybe it had something to do with it.. i dont know.. but it was the only time it did actually succeed without a host of 500 errors.