PHP Error

Hi Konstantin,
I'm writing directly to your email address giving the link to download the latest version 2.6.3 of WPC EXE (PRO)
David
at2034

Hello,

I have sent you 3 emails but no one reply.
I bought Pro plugin some time ago and I came back to site to log in to my account and it says it does not exist.

I have problem after WordPress update to 5.5

g offset access syntax with curly braces is deprecated in /wp-content/plugins/woo-price-calculator/admin/resources/lib/PHPExcel/Classes/PHPExcel/Shared/String.php on line 529

Deprecated: Array and string offset access syntax with curly braces is deprecated in /wp-content/plugins/woo-price-calculator/admin/resources/lib/PHPExcel/Classes/PHPExcel/Shared/String.php on line 530

Deprecated: Array and string offset access syntax with curly braces is deprecated in wp-content/plugins/woo-price-calculator/admin/resources/lib/PHPExcel/Classes/PHPExcel/Shared/String.php on line 536

Deprecated: Array and string offset access syntax with curly braces is deprecated in /wp-content/plugins/woo-price-calculator/admin/resources/lib/PHPExcel/Classes/PHPExcel/Shared/String.php on line 536

Deprecated: Array and string offset access syntax with curly braces is deprecated in /wp-content/plugins/woo-price-calculator/admin/resources/lib/PHPExcel/Classes/PHPExcel/Shared/String.php on line 537

Deprecated: Array and string offset access syntax with curly braces is deprecated in /wp-content/plugins/woo-price-calculator/admin/resources/lib/PHPExcel/Classes/PHPExcel/Shared/String.php on line 537

Plugin Version 2.4.4

HELP ASAP