To improve security, we will soon start forcing password resets for any account that uses a weak password on the next login. If you have a weak password or a defunct email, please update it now to prevent future disruption.
Try redownloading (from the same or another source) and extracting again, for some reason your game folder lacks the nw_elf.dll (like it's saying in the message). It also can be because of your AV, which detected the file as dangerous and put in quarantine, so check that too.