Libraries which containing the PHP class release_3_0_3

Solve: PHP Fatal error: Uncaught Error: Class "release_3_0_3" not found

phpbb\db\migration\data\v30x\release_3_0_3

Namespace:

This class belongs to the vendor Phpbb and the package Phpbb

phpbb\db\migration\data\v30x\release_3_0_3

Namespace:

This class belongs to the vendor Phpbb and the package Phpbb-core

phpbb\db\migration\data\v30x\release_3_0_3

Namespace:

This class belongs to the vendor My-oos and the package My-oos