Internal Server HTTP ERROR 500 after update to 2.1.33

Have been running Aakaunting without issues on internal server with Ubuntu 20.04.4 LTS. Was not updating to 2.1.33 and made as per https://akaunting.com/forum/discussion/announcements/akaunting-2132-update
Was working for two days but today got HTTP ERROR 500
Where to look please?

Checked /var/www/akaunting for permissions - 755

Found log. Here is the error:
[2022-04-04 09:04:26] production.ERROR: Uncaught ErrorException: file_put_contents(/var/www/akaunting/storage/framework/cache/data/cf/40/cf40d436c64b358d83a3ae84f8d9e9bb61573a66): failed to open stream: Permission denied in /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:187
Stack trace:
#0 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->handleError()
#1 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(187): file_put_contents()
#2 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Cache/FileStore.php(77): Illuminate\Filesystem\Filesystem->put()
#3 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Cache/Repository.php(213): Illuminate\Cache\FileStore->put()
#4 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Cache/Repository.php(391): Illuminate\Cache\Repository->put()
#5 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(418): Illuminate\Cache\Repository->remember()
#6 /var/www/akaunting/vendor/la {"userId":1,"exception":"[object] (Symfony\\Component\\ErrorHandler\\Error\\FatalError(code: 0): Uncaught ErrorException: file_put_contents(/var/www/akaunting/storage/framework/cache/data/cf/40/cf40d436c64b358d83a3ae84f8d9e9bb61573a66): failed to open stream: Permission denied in /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:187
Stack trace:
#0 [internal function]: Illuminate\\Foundation\\Bootstrap\\HandleExceptions->handleError()
#1 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(187): file_put_contents()
#2 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Cache/FileStore.php(77): Illuminate\\Filesystem\\Filesystem->put()
#3 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Cache/Repository.php(213): Illuminate\\Cache\\FileStore->put()
#4 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Cache/Repository.php(391): Illuminate\\Cache\\Repository->put()
#5 /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php(418): Illuminate\\Cache\\Repository->remember()
#6 /var/www/akaunting/vendor/la at /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:187)
[stacktrace]
#0 {main}
"}

failed to open stream: Permission denied in /var/www/akaunting/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:187 - permissions 755, owner www-data

Have to add that it gies login page and when I do login it gies Error 500

Any comments please?