Deprecated: sha1(): Passing null to parameter #1 ($string) of type string is deprecated in /htdocs/index.php(3) : eval()'d code on line 1

Warning: require(/htdocs/wp-includes/version.php): Failed to open stream: No such file or directory in /htdocs/wp-settings.php on line 34

Warning: require(/htdocs/wp-includes/version.php): Failed to open stream: No such file or directory in /htdocs/wp-settings.php on line 34

Fatal error: Uncaught Error: Failed opening required '/htdocs/wp-includes/version.php' (include_path='.:/usr/share/php') in /htdocs/wp-settings.php:34 Stack trace: #0 /htdocs/wp-config.php(96): require_once() #1 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...') #2 /htdocs/wp-blog-header.php(13): require_once('/htdocs/wp-load...') #3 /htdocs/index.php(19): require('/htdocs/wp-blog...') #4 {main} thrown in /htdocs/wp-settings.php on line 34