I fixed the problem! turns out when i ran tonex Windows Defender's Memory Tamper setting blocked Tonex.dll from loading when cubase started and cubase added it to the blacklist.. i had to disable the Memory Tamper setting in Windows Defender and go back in Cubase > Plug-ins somewhere in the top bar and went to "Blacklist" and removed Tonex.dll.
If anyone has this issue try this and let me know if it solved it for you