"HALion Sonic Synth 01 not found"

Hi. I’d love some help.

I’m running Cubase 7.5 on a mac for around a year and recently downloaded and installed the 7.5.40 Upgrade. The first time I used Cubase after that I went to load Groove Agent ONE and Groove Agent SE and was got a message saying they couldn’t be found.

Today I went back to try again - GA ONE will load but I still can’t load SE. I get the message ‘VST Sound Library “HALion Sonic Synth 01” not found’, followed by a menu list, and boxes that give me the options to ‘Locate’, ‘Ignore’ or ‘Remove’.

I’ve never encountered this before and have no idea how to remedy it.

Are you able to help…?

Thank you.