开启缓存点测试报错的

开启缓存点测试报错：php7.3的
{ "title": "ErrorException", "type": "ErrorException", "code": 500, "message": "Uncaught CodeIgniter\\Format\\Exceptions\\FormatException: Failed to parse json string, error: \"Malformed UTF-8 characters, possibly incorrectly encoded\". in C:\\wwwroot\\cclmi.com\\dayrui\\System\\Format\\Exceptions\\FormatException.php:44\nStack trace:\n#0 C:\\wwwroot\\cclmi.com\\dayrui\\System\\Format\\JSONFormatter.php(42): CodeIgniter\\Format\\Exceptions\\FormatException::forInvalidJSON('Malformed UTF-8...')\n#1 C:\\wwwroot\\cclmi.com\\dayrui\\System\\API\\ResponseTrait.php(407): CodeIgniter\\Format\\JSONFormatter->format(Array)\n#2 C:\\wwwroot\\cclmi.com\\dayrui\\System\\API\\ResponseTrait.php(114): CodeIgniter\\Debug\\Exceptions->format(Array)\n#3 C:\\wwwroot\\cclmi.com\\dayrui\\Fcms\\Extend\\Exceptions.php(55): CodeIgniter\\Debug\\Exceptions->respond(Array, 500)\n#4 [internal function]: Phpcmf\\Extend\\Exceptions->exceptionHandler(Object(CodeIgniter\\Exceptions\\CriticalError))\n#5 {main}\n thrown", "file": "C:\\wwwroot\\cclmi.com\\dayrui\\System\\Format\\Exceptions\\FormatException.php", "line": 44, "trace": [ { "function": "shutdownHandler", "class": "CodeIgniter\\Debug\\Exceptions", "type": "->", "args": [] } ] }