Please do like this:
Go to Computer -> Start -> Control Panel -> Java -> Security -> In Exception Site List, copy and paste the following 3 links of EWA.
One more question: which MB Star may have this error that I will notice?
Answer: if you got from obdexpress.co.uk, that is any of
Buddies, MB Star EPC.net error “application blocked by Java Security” has working solution now, thanks to obdexpress.co.uk engineer.