ThemeREX Addons backend error

Hi there, I’m getting the following error on my site every time I activate a plugin:

Warning: preg_match(): Compilation failed: invalid range in character class at offset 6 in /home/customer/www/website.co.uk/public_html/wp-content/plugins/trx_addons/includes/plugin.files.php on line 126

Warning: Cannot modify header information - headers already sent by (output started at /home/customer/www/website.co.uk/public_html/wp-content/plugins/trx_addons/includes/plugin.files.php:126) in /home/customer/www/wearechol.co.uk/public_html/wp-includes/functions.php on line 6221

Has anyone had anything similar … or knows what it means/how to fix it?

Hi,

Contact with your purchase item author hope they will helped!

Thanks!