{"error":"A required parameter (username) was missing","errorcode":"missingparam","stacktrace":"* line 496 of \/lib\/setuplib.php: moodle_exception thrown\n* line 567 of \/lib\/moodlelib.php: call to print_error()\n* line 34 of \/login\/token.php: call to required_param()\n","debuginfo":"\nError code: missingparam","reproductionlink":"http:\/\/192.168.1.20\/moodle\/"}
Dear sir/Madam,
What should i do regarding this kind of error