The Anthology XI installer is not M1 native compatible, but you have a few options besides upgrading to AXII. You can run the individual installers of all the plug-ins you own, or you can run the AXII installer and uncheck any plug-ins that you don’t own in the installer helper window. Either of these options will get you up to date with the latest M1 compatible plug-ins, the 2nd option would be the simpler/faster option.