DebugBar -> Server Error 500

[fefo-p]

Since a few days I've been getting this error in the logs, while in the browser console a 500 error appeared whenever the DebugBar was due to appear.

CRITICAL - 2018-08-20 17:14:06 --> Use of undefined constant logs - assumed 'logs'
#0 /Library/Server/Web/Data/Sites/ci4complete/system/View/Parser.php(522) : eval()'d code(1): CodeIgniter\Debug\Exceptions->errorHandler(8, 'Use of undefine...', '/Library/Server...', 1, Array)
#1 /Library/Server/Web/Data/Sites/ci4complete/system/View/Parser.php(522): eval()
#2 /Library/Server/Web/Data/Sites/ci4complete/system/View/Parser.php(268): CodeIgniter\View\Parser->parseConditionals('<?php if (logs ...')
#3 /Library/Server/Web/Data/Sites/ci4complete/system/View/Parser.php(161): CodeIgniter\View\Parser->parse('{ if logs == []...', Array, NULL)
#4 /Library/Server/Web/Data/Sites/ci4complete/system/Debug/Toolbar/Views/toolbar.tpl.php(117): CodeIgniter\View\Parser->render('_logs.tpl.php')
#5 /Library/Server/Web/Data/Sites/ci4complete/system/Debug/Toolbar.php(285): include('/Library/Server...')
#6 /Library/Server/Web/Data/Sites/ci4complete/system/Debug/Toolbar.php(461): CodeIgniter\Debug\Toolbar::format(Array, 'html')
#7 /Library/Server/Web/Data/Sites/ci4complete/system/Events/Events.php(176): CodeIgniter\Debug\Toolbar::eventHandler()
#8 /Library/Server/Web/Data/Sites/ci4complete/system/CodeIgniter.php(201): CodeIgniter\Events\Events::trigger('pre_system')
#9 /Library/Server/Web/Data/Sites/ci4complete/public/index.php(37): CodeIgniter\CodeIgniter->run()
#10 {main}

After looking into it, I managed to correct it. It seems the if $condition`` was not escaped. So on /system/View/Parser.php```, line 510, I added double quotes like this:

$statement = $match[1] == 'elseif' ? '<?php elseif ("' . $condition . '"): ?>' : '<?php if ("' . $condition . '"): ?>';

Hope it helps