These are the steps that I need you to take.  You have already done some.

1 - clear cache, restart (DONE)

2 - DO NOT USE YOUR BOOKMARK (They go stale) go directly to  https://www.linnbenton.edu/mylb.php and single sign on then the LF Forms tile
Alternatively, you can go to (and do try this) https://lfforms.linnbenton.edu/Forms/
and choose the blue "MyLB single sign on" button


IF THAT DOESN"T WORK...............

3 - Do all of the above in and INCOGNITO window or INPRIVATE window (depending on the browser used)

IF THAT DOESN"T WORK...............

4 - Try a different browser.  If you are using Edge, use Chrome, vice versa OR try Firefox, they are all installed on your machine and sometimes, this is just what we have to do.

Let me know how it goes.