Site down after PHP 8.2 and MariaDB 10.4 upgrades

[Folder]

Hello! I’ve been using free hosting here for almost an year now and I’ve never had problems before.

Website URL: folder.com.uy

Error Message: “El sitio está experimentando dificultades técnicas.” - (The site is experiencing technical difficulties.)

If I try to go to WP Dashboard the message is:

“El sitio está experimentando dificultades técnicas. Por favor, revisa el buzón de correo electrónico del administrador de tu sitio para ver las instrucciones.” - (The site is experiencing technical difficulties. Please check your site administrator’s email inbox for instructions.)

But no such mail has been received.

The site was working fine, no changes made by me at all.

I have read some posts about similar problems but did not find any solution.

Any clues on this issue? Thanks in adnvance!

EDIT:

After Chris’s suggestion the Error message is:

" Fatal error: Array and string offset access syntax with curly braces is no longer supported in /home/vol14_2/epizy.com/epiz_33093791/htdocs/wp-includes/script-loader.php on line 757"

I guess updating WP could help but I can’t access the WP_admin.

[ChrisPAR]

Can you enable “Display Errors” and activate WP_DEBUG to get the actual error message?

Http error 500

When trying to access your website, you may see a page which returns the status code “500”. In Google Chrome, you’ll see a page with the error code HTTP ERROR 500. There are typically two reasons which can cause this error: The PHP code has crashed. The .htaccess file contains invalid rules. Here are some things you can try to debug and fix this. Fixing crashing PHP code A HTTP ERROR 500 simply tells you that the PHP code has crashed, but gives no information as to why it has crashed. Gett…

[Greenreader9]

OP updated post

[ChrisPAR]

@Greenreader9

OP updated post

Thanks for the notice!

@Folder

updating WP could help but I can’t access the WP_admin

If you have installed WP via Softaculous, you can update it from there.
If not, you try performing the update manually:

Updating WordPress

Make sure to take a backup beforehand in case anything goes wrong.

[Folder]

Finally could fix it by updating manually using FileZilla and latest WP (V. 6.3.1)

Thank you really much for the help!