sliced invoice error

Hi there,

I purchased your plugin about 1,5 year ago, also I purchased PDF extension plugin.

This week i am having issues to open the Tax Invoices summary, I can still open the ADD TAX INVOICE, REPORTS and etc, but I am getting a message error if I try to click on “Tax Invoices”

The error says Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 72 bytes) in /home/stckes519/public_html/wp-includes/meta.php on line 835

I have checked the above with our web developer and hosting company, they thought it would be a memory issue, they allocated more memory to the site, but the message is coming up again.

Also there is this message popping up when typing an invoice

Warning: Missing argument 4 for Sliced_Metaboxes::pre_get_terms() in /home/stckes519/public_html/wp-content/plugins/sliced-invoices/admin/includes/sliced-admin-metaboxes.php on line 939

can you please let me know what would be the best thing to look into this issue?

Hi Andrew,
thank you for your reply
I cannot submit the ticket as I cannot access the Licence Number and when I log in to Sliced invoices, it says I did not make any purchases, I got an invoice but I must have purchased it via WordPress ?
Since I cannot enter the licence number the ticket cannot go through.

I got the System info

Thanks,

Monika

Many thanks

The page I need help with: http://www.studstocksales.com