If you can find SecureAccess there, delete it and try to open the SecureAccess again normally.
I contacted SanDisk chat - and the support person gave 2 solutions: My SecureAccess V3 gave a “SecureAccess is already running” error where I cannot open it and therefore cannot type my password to enter the vault to retrieve my existing files within the vault. Just to share some information with others who might face similar issues with SecureAccess v3
