You can find troubleshooting for the login error 334 in the following help article linked below.
ERROR 334 - ERROR CODE - THE ELDER SCROLLS ONLINE
ZOS_Adrikoth wrote: »Hey there @Rydik
If this error still occurs despite trying the steps linked above, then please open up a support ticket with us for further assistance.
Well, after last maitanance and some advise from ticket 210212-004076 for 3 days everything was fine, but now all started again, cant change locations at all, constant 334