Why, after transferring the site from the locale to the server, did the declaration of the type of variables in the classes disappear?

Question

PHP

Mistake:

Parse error: syntax error, unexpected 'Logger' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in C:\OSPanel\domains\ttk.loc\parser\src\lib\Log\TBuildLogger.php on line 18

Initially, I tested the console program, then it became necessary to adapt it to the web, but there was such an error. What could be the problem. On OpenServer 7.3 php version

Answer 1

Most likely the problem is in the path of the class autoloader.