Please note this a public user to user forum not Magix Support and I have removed your email address and serial number.
Please do not post email addresses, personal information, serial numbers and order numbers in the forum.
If the program you have is Movie Edit Pro and assuming the new computer is running Windows 10 or 11 then the program, having a P2- serial number, is not compatible.
If you do manage to get it installed, it is very unlikely that it can be activated.
IMHO it is time to upgrade the program to a modern Windows 10/11 compatible version.