Admin Login Page after Foundation 6 Update

[kalimati]

I have been updating an existing website on my local Ubuntu server. I updated the website from Processwire 2.5 to 2.8.62. No issues till this point. Then I created a new templates folder, installed Foundation 6, copied the old PHP template files and customized the SCSS files to rebuild the site. The frontend works without a problem. However, when I try to access the backend, the website/processwire url, I get this error message. Any idea what is wrong and how can I correct the issue?

I made no changes to the backend theme.

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Warning: fopen(/var/www/tribology/public_html/site/assets/logs/exceptions.txt): failed to open stream: Permission denied in /var/www/tribology/public_html/wire/core/FileLog.php on line 82

Fatal error: Exception: Missing or non-readable template file: admin.php (in /var/www/tribology/public_html/wire/modules/PageRender.module line 517) #0 /var/www/tribology/public_html/wire/core/Wire.php(383): PageRender->___renderPage(Object(HookEvent)) #1 /var/www/tribology/public_html/wire/core/WireHooks.php(698): Wire->_callMethod('___renderPage', Array) #2 /var/www/tribology/public_html/wire/core/Wire.php(442): WireHooks->runHooks(Object(PageRender), 'renderPage', Array) #3 /var/www/tribology/public_html/wire/core/WireHooks.php(782): Wire->__call('renderPage', Array) #4 /var/www/tribology/public_html/wire/core/Wire.php(442): WireHooks->runHooks(Object(Page), 'render', Array) #5 /var/www/tribology/public_html/wire/modules/Process/ProcessPageView.module(205): Wire->__call('render', Array) #6 /var/www/tribology/public_html/wire/core/Wire.php(383): ProcessPageView->___execute(true) #7 /var/www/tribology/public_html/wire/core/WireHooks.php(698): Wire->_callMethod('___execute', Array) #8 /var/www/tribology/public_html/wire/ in /var/www/tribology/public_html/index.php on line 64

Warning: fopen(/var/www/tribology/public_html/site/assets/logs/errors.txt): failed to open stream: Permission denied in /var/www/tribology/public_html/wire/core/FileLog.php on line 82
Error: Exception: Missing or non-readable template file: admin.php (in /var/www/tribology/public_html/wire/modules/PageRender.module line 517)

#0 /var/www/tribology/public_html/wire/core/Wire.php(383): PageRender->___renderPage(Object(HookEvent))
#1 /var/www/tribology/public_html/wire/core/WireHooks.php(698): Wire->_callMethod('___renderPage', Array)
#2 /var/www/tribology/public_html/wire/core/Wire.php(442): WireHooks->runHooks(Object(PageRender), 'renderPage', Array)
#3 /var/www/tribology/public_html/wire/core/WireHooks.php(782): Wire->__call('renderPage', Array)
#4 /var/www/tribology/public_html/wire/core/Wire.php(442): WireHooks->runHooks(Object(Page), 'render', Array)
#5 /var/www/tribology/public_html/wire/modules/Process/ProcessPageView.module(205): Wire->__call('render', Array)
#6 /var/www/tribology/public_html/wire/core/Wire.php(383): ProcessPageView->___execute(true)
#7 /var/www/tribology/public_html/wire/core/WireHooks.php(698): Wire->_callMethod('___execute', Array)
#8 /var/www/tribology/public_html/wire/

This error message was shown because: site is in debug mode. ($config->debug = true; => /site/config.php). Error has been logged.

[gmclelland]

Quote

Missing or non-readable template file: admin.php

Do you have an admin.php in you site/templates folder?

[kalimati]

Thank you, gmclelland. That was it besides cleaning the cache.