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
20.0018685256Cake\Http\Server->run( ).../index.php:40
30.0050897256Cake\Http\Runner->run( ).../Server.php:90
40.0050897256Cake\Http\Runner->handle( ).../Runner.php:58
50.0050897256Cake\Error\Middleware\ErrorHandlerMiddleware->process( ).../Runner.php:73
60.00771233336Cake\Error\Middleware\ErrorHandlerMiddleware->handleException( ).../ErrorHandlerMiddleware.php:125
70.08493302832Cake\Error\ErrorHandler->logException( ).../ErrorHandlerMiddleware.php:143
80.08513304816Cake\Error\ErrorLogger->log( ).../BaseErrorHandler.php:338
90.08523306352Cake\Log\Log::error( ).../ErrorLogger.php:91
100.08523306352Cake\Log\Log::write( ).../Log.php:459
110.08563315776Cake\Log\Engine\FileLog->log( ).../Log.php:390
120.08563317408file_put_contents ( ).../FileLog.php:131
130.08573319368Cake\Error\ErrorHandler->handleError( ).../FileLog.php:131
140.08793321912Cake\Error\ErrorHandler->_logError( ).../BaseErrorHandler.php:188
150.08873324296Cake\Error\ErrorLogger->logMessage( ).../BaseErrorHandler.php:322
160.08873325832Cake\Log\Log::write( ).../ErrorLogger.php:69
170.08873326584Cake\Log\Engine\FileLog->log( ).../Log.php:390
180.08883328200file_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
20.08933315608Cake\Http\Server->emit( ).../index.php:40
30.08943317048Cake\Http\ResponseEmitter->emit( ).../Server.php:130
40.08943317352trigger_error ( ).../ResponseEmitter.php:71
50.08943319056Cake\Error\ErrorHandler->handleError( ).../ResponseEmitter.php:71
60.12823329112Cake\Error\ErrorHandler->_logError( ).../BaseErrorHandler.php:188
70.12843330128Cake\Error\ErrorLogger->logMessage( ).../BaseErrorHandler.php:322
80.12853330896Cake\Log\Log::write( ).../ErrorLogger.php:69
90.12853331648Cake\Log\Engine\FileLog->log( ).../Log.php:390
100.12853332496file_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
20.08933315608Cake\Http\Server->emit( ).../index.php:40
30.08943317048Cake\Http\ResponseEmitter->emit( ).../Server.php:130
40.12883326616Cake\Http\ResponseEmitter->emitStatusLine( ).../ResponseEmitter.php:74
50.12883326936header ( ).../ResponseEmitter.php:168
60.12883328640Cake\Error\ErrorHandler->handleError( ).../ResponseEmitter.php:168
70.16393329752Cake\Error\ErrorHandler->_logError( ).../BaseErrorHandler.php:188
80.16433331088Cake\Error\ErrorLogger->logMessage( ).../BaseErrorHandler.php:322
90.16433331984Cake\Log\Log::write( ).../ErrorLogger.php:69
100.16433332736Cake\Log\Engine\FileLog->log( ).../Log.php:390
110.16443333712file_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
20.08933315608Cake\Http\Server->emit( ).../index.php:40
30.08943317048Cake\Http\ResponseEmitter->emit( ).../Server.php:130
40.16463326936Cake\Http\ResponseEmitter->emitHeaders( ).../ResponseEmitter.php:75
50.16463327312header ( ).../ResponseEmitter.php:201
60.16463329016Cake\Error\ErrorHandler->handleError( ).../ResponseEmitter.php:201
70.19773329808Cake\Error\ErrorHandler->_logError( ).../BaseErrorHandler.php:188
80.19803331144Cake\Error\ErrorLogger->logMessage( ).../BaseErrorHandler.php:322
90.19803332040Cake\Log\Log::write( ).../ErrorLogger.php:69
100.19803332792Cake\Log\Engine\FileLog->log( ).../Log.php:390
110.19813333768file_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