hi sir i am facing register problem sir plz solve me yar

#1
A PHP Error was encountered
Severity: Notice
Message: Undefined property: Auth::$key
Filename: controllers/Auth.php
Line Number: 1018
Backtrace:
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 1018
Function: _error_handler
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 865
Function: createauth
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 496
Function: run
File: /var/www/nginx/html/index.php
Line: 284
Function: require_once
A PHP Error was encountered
Severity: Notice
Message: Undefined property: Auth::$client_id
Filename: controllers/Auth.php
Line Number: 1019
Backtrace:
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 1019
Function: _error_handler
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 865
Function: createauth
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 496
Function: run
File: /var/www/nginx/html/index.php
Line: 284
Function: require_once
A PHP Error was encountered
Severity: Notice
Message: Undefined property: Auth::$gateway_url
Filename: controllers/Auth.php
Line Number: 1063
Backtrace:
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 1063
Function: _error_handler
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 1021
Function: do_curl
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 865
Function: createauth
File: /var/www/nginx/html/application/modules/auth/controllers/Auth.php
Line: 496
Function: run
File: /var/www/nginx/html/index.php
Line: 284
Function: require_once
 

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