issue when changing vendor during invoice entry

[HDeriauFF]

now the issue is when you click on "purchase orders" to lans on SuppInvGRNs.php, the list of items to choose from is no longer retrieved and we get:

INFORMATION Message : To enter a supplier transactions the supplier must first be selected from the supplier selection screen, then the link to enter a supplier invoice must be clicked on.

I tried to replace instances of $_SESSION['SuppTrans'] in SuppInvGRNs.php, no success...

Thank you for your input!

Hugues