Same issue here
It seems to affect different panel applets randomly. Doesn't happen every time.
But it's a pain, because I install Mint 11 now for customers.
Logout and In seems the easiest or just 'don't delete' and ignore the missing
icon and carry on as usual.
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You received this bug notific
I'm guessing this is related from Mint 17.3
p11-kit: couldn't load module: /usr/lib/i386-linux-gnu/pkcs11/p11-kit-trust.so:
/usr/lib/i386-linux-gnu/pkcs11/p11-kit-trust.so: cannot open shared object
file: No such file or directory
p11-kit: couldn't load module:
/usr/lib/i386-linux-gnu/pkcs11/gn