How do you fix this?

erro lost ark

It seems EAC doesn’t have permissions.

Can you try to launch EAC install as administrator ? ( right click → launch as administrator )

I’ve moved this over to the support section so our support team can check into this for you.

Greetings @Medeiros & @neolitejukebox

Welcome to our Forums.
I am sorry to hear you are experiencing issues with EAC.

Please try this steps above to try to resolve the issue , after that If the issue persist , since we need more details of your account please send a web ticket to our team so we can investigate more :

You can visit this link to create the web ticket for our team:
Select In-game Issues → Something Else → Contact Us → Web ticket.
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Contact Us | Amazon Games

Take care.
☽ 𖤍 ☾