Hello, please quote for the following jobs thanks.

Hello, please quote for the following jobs thanks.

Bug fix after upgrade from Magento 1.9 to 2.3

PAYMENT MODULE SYSTEM PAY (BANK POPULAIRE)
Order status of orders paid with carte bancaire stay as PENDING PAYMENT and not PROCESSING in some (but not all cases). Customers do not receive order confirmation emails if payment method is not status = PROCESSING.
If we manually change order status on Magento to PENDING PAYMENT the orders are automatically and instantly updated to SHIPPED status and a random false COLISSIMO tracking number is created and applied to the order.

PAYPAL
Module not working correctly - currently disabled.
Paypal IPN not set up
Needs debug and fix.

COLISSIMO SHIPPING METHOD
Certain postcodes are not accepted at point of order.
Needs debug and check working correctly

MAGENTO HOMEPAGE
OWL slider section - needs to be installed as code has been messed up.
Need banner slider to be working correctly.

MAGENTO CATEGORY PAGE VIEW
Navigation option not working correctly on category page view - needs debug.
Not possible to "VIEW ALL" product option.
Navigation with arrow keys forward and backwards sometimes does not work (cannot move forward or back or past page 2 etc. random errors)