Internal 500 error caused by plugin

Hi buddy, I hope everything is going well.

I recently started having a few 500 internal errors, and tried debugging for information. It said it was caused by this plugin. The website support said it was having a conflict and not compatible with the current PHP version or WordPress core files.

More specifically, it said this:

Frontend:
Deprecated: Creation of dynamic property QuotesLlama::$quotes_llama_plugin_options is deprecated in /customers/0/9/e/mt91.com/httpd.www/wp-content/plugins/quotes-llama/class-quotesllama.php on line 100

Backend:
Deprecated: Creation of dynamic property QuotesLlama::$quotes_llama_plugin_options is deprecated in /customers/0/9/e/mt91.com/httpd.www/wp-content/plugins/quotes-llama/class-quotesllama.php on line 100 Warning: Cannot modify header information – headers already sent by (output started at /customers/0/9/e/mt91.com/httpd.www/wp-content/plugins/quotes-llama/class-quotesllama.php:100) in /customers/0/9/e/mt91.com/httpd.www/wp-admin/includes/misc.php on line 1431 Warning: Cannot modify header information – headers already sent by (output started at /customers/0/9/e/mt91.com/httpd.www/wp-content/plugins/quotes-llama/class-quotesllama.php:100) in /customers/0/9/e/mt91.com/httpd.www/wp-includes/functions.php on line 6935 Warning: Cannot modify header information – headers already sent by (output started at /customers/0/9/e/mt91.com/httpd.www/wp-content/plugins/quotes-llama/class-quotesllama.php:100) in /customers/0/9/e/mt91.com/httpd.www/wp-admin/admin-header.php on line 9

I hope this information can help. Thank you for your amazing plugin!

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