Uncaught think\exception\ErrorException: A non well formed numeric value encountered

#0 [internal function]: think\Error::appError(8, 'A non well form...', '/data/web/e...', 62, Array)
#1 /data/web/e/thinkphp/library/think/log/driver/File.php(62): number_format('3,925.591097116...', 6)