Thema: crashing error 17 after beating new content 5.3 (spoiler)

When submitting a bug report, please use the below template and thoroughly fill out the necessary information.

Date & Time: 3:14am
Frequency: after defeating WoL
World name: Sargatanus
Character name: Helios Eira

Monster name: Warrior of light (normal/story)
Class/Level: 80
Party or solo: beaten in party

Area and coordinates: seat of sacrifice


I beat the WoL normal mode/msq and it crashed after with error 17
I cant log in either and I'm afraid if I ever get the ability to log back in I wont get to view the cutscene ):
It's been happening since I started playing this evening, but now I cant even log into my character. it just crashes.
I can log into my other character fine however, but logging into my main just ends with the same result. Error 17.
Screenshots below-

Good afternoon and thank you for posting on the Final Fantasy XIV Technical Support Forums.

We apologize for the delay in our response to your concern. When did this start happening? Do you recall anything changing/updating on your PC that coincides with this? What have you done so far in order to alleviate the issue? Can you submit a Final Fantasy XIV system report? Simply go to the 'Config' option on the Final Fantasy XIV launcher and to the right of 'System Information' click on 'Display.'

Thank you for visiting the Final Fantasy XIV Technical Support Forums