Warning (2): file_put_contents(/home/www/darkplanet/tmp//logs/error.log) [<a href='https://secure.php.net/function.file-put-contents'>function.file-put-contents</a>]: failed to open stream: Permission denied [CORE/src/Log/Engine/FileLog.php, line 131]

( ! ) Warning: file_put_contents(/home/www/darkplanet/tmp//logs/error.log) [<a href='https://secure.php.net/function.file-put-contents'>function.file-put-contents</a>]: failed to open stream: Permission denied in /home/www/darkplanet/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 131
Call Stack
#TimeMemoryFunctionLocation
10.0000396408{main}( ).../index.php:0
20.0026685256Cake\Http\Server->run( ).../index.php:40
30.0070897256Cake\Http\Runner->run( ).../Server.php:90
40.0070897256Cake\Http\Runner->handle( ).../Runner.php:58
50.0071897256Cake\Error\Middleware\ErrorHandlerMiddleware->process( ).../Runner.php:73
60.01071233336Cake\Error\Middleware\ErrorHandlerMiddleware->handleException( ).../ErrorHandlerMiddleware.php:125
70.11343302832Cake\Error\ErrorHandler->logException( ).../ErrorHandlerMiddleware.php:143
80.11363304816Cake\Error\ErrorLogger->log( ).../BaseErrorHandler.php:338
90.11383306352Cake\Log\Log::error( ).../ErrorLogger.php:91
100.11383306352Cake\Log\Log::write( ).../Log.php:459
110.11433315776Cake\Log\Engine\FileLog->log( ).../Log.php:390
120.11443317408file_put_contents ( ).../FileLog.php:131
130.11443319368Cake\Error\ErrorHandler->handleError( ).../FileLog.php:131
140.11683321912Cake\Error\ErrorHandler->_logError( ).../BaseErrorHandler.php:188
150.11793324296Cake\Error\ErrorLogger->logMessage( ).../BaseErrorHandler.php:322
160.11803325832Cake\Log\Log::write( ).../ErrorLogger.php:69
170.11803326584Cake\Log\Engine\FileLog->log( ).../Log.php:390
180.11813328200file_put_contents ( ).../FileLog.php:131
 
Warning (512): Unable to emit headers. Headers sent in file=/home/www/darkplanet/vendor/cakephp/cakephp/src/Error/Debugger.php line=954 [CORE/src/Http/ResponseEmitter.php, line 71]

( ! ) Warning: file_put_contents(/home/www/darkplanet/tmp//logs/error.log) [<a href='https://secure.php.net/function.file-put-contents'>function.file-put-contents</a>]: failed to open stream: Permission denied in /home/www/darkplanet/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 131
Call Stack
#TimeMemoryFunctionLocation
10.0000396408{main}( ).../index.php:0
20.11873315608Cake\Http\Server->emit( ).../index.php:40
30.11883317048Cake\Http\ResponseEmitter->emit( ).../Server.php:130
40.11883317352trigger_error ( ).../ResponseEmitter.php:71
50.11883319056Cake\Error\ErrorHandler->handleError( ).../ResponseEmitter.php:71
60.16333329112Cake\Error\ErrorHandler->_logError( ).../BaseErrorHandler.php:188
70.16373330128Cake\Error\ErrorLogger->logMessage( ).../BaseErrorHandler.php:322
80.16373330896Cake\Log\Log::write( ).../ErrorLogger.php:69
90.16373331648Cake\Log\Engine\FileLog->log( ).../Log.php:390
100.16383332496file_put_contents ( ).../FileLog.php:131
 
Warning (2): Cannot modify header information - headers already sent by (output started at /home/www/darkplanet/vendor/cakephp/cakephp/src/Error/Debugger.php:954) [CORE/src/Http/ResponseEmitter.php, line 168]

( ! ) Warning: file_put_contents(/home/www/darkplanet/tmp//logs/error.log) [<a href='https://secure.php.net/function.file-put-contents'>function.file-put-contents</a>]: failed to open stream: Permission denied in /home/www/darkplanet/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 131
Call Stack
#TimeMemoryFunctionLocation
10.0000396408{main}( ).../index.php:0
20.11873315608Cake\Http\Server->emit( ).../index.php:40
30.11883317048Cake\Http\ResponseEmitter->emit( ).../Server.php:130
40.16413326616Cake\Http\ResponseEmitter->emitStatusLine( ).../ResponseEmitter.php:74
50.16413326936header ( ).../ResponseEmitter.php:168
60.16413328640Cake\Error\ErrorHandler->handleError( ).../ResponseEmitter.php:168
70.20893329752Cake\Error\ErrorHandler->_logError( ).../BaseErrorHandler.php:188
80.20943331088Cake\Error\ErrorLogger->logMessage( ).../BaseErrorHandler.php:322
90.20943331984Cake\Log\Log::write( ).../ErrorLogger.php:69
100.20953332736Cake\Log\Engine\FileLog->log( ).../Log.php:390
110.20953333712file_put_contents ( ).../FileLog.php:131
 
Warning (2): Cannot modify header information - headers already sent by (output started at /home/www/darkplanet/vendor/cakephp/cakephp/src/Error/Debugger.php:954) [CORE/src/Http/ResponseEmitter.php, line 201]

( ! ) Warning: file_put_contents(/home/www/darkplanet/tmp//logs/error.log) [<a href='https://secure.php.net/function.file-put-contents'>function.file-put-contents</a>]: failed to open stream: Permission denied in /home/www/darkplanet/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 131
Call Stack
#TimeMemoryFunctionLocation
10.0000396408{main}( ).../index.php:0
20.11873315608Cake\Http\Server->emit( ).../index.php:40
30.11883317048Cake\Http\ResponseEmitter->emit( ).../Server.php:130
40.20983326936Cake\Http\ResponseEmitter->emitHeaders( ).../ResponseEmitter.php:75
50.20993327312header ( ).../ResponseEmitter.php:201
60.20993329016Cake\Error\ErrorHandler->handleError( ).../ResponseEmitter.php:201
70.25233329808Cake\Error\ErrorHandler->_logError( ).../BaseErrorHandler.php:188
80.25293331144Cake\Error\ErrorLogger->logMessage( ).../BaseErrorHandler.php:322
90.25293332040Cake\Log\Log::write( ).../ErrorLogger.php:69
100.25303332792Cake\Log\Engine\FileLog->log( ).../Log.php:390
110.25303333768file_put_contents ( ).../FileLog.php:131
 Error: Missing Controller

Missing Controller 📋

Cake\Http\Exception\MissingControllerException
Toggle Vendor Stack Frames

Error ImgController could not be found.

CORE/src/Controller/ControllerFactory.php Toggle Arguments
     * @return void
     */
    protected function missingController(ServerRequest $request): void
    {
        throw new MissingControllerException([
            'class' => $request->getParam('controller'),
            'plugin' => $request->getParam('plugin'),
            'prefix' => $request->getParam('prefix'),
            '_ext' => $request->getParam('_ext'),

In the case you tried to access a plugin controller make sure you added it to your composer file or you use the autoload option for the plugin.

Suggestion Create the class ImgController below in file: src/Controller/ImgController.php

    <?php
    namespace App\Controller;

    use App\Controller\AppController;

    class ImgController extends AppController
    {

    }

If you want to customize this error message, create templates/Error/missing_controller.php