@PitaJ thank to reply
but I already set og image

and where to set thumb image

and how to fix it

Where file location i can fix it

can't send email error in log appear

have another error

nodebb can't start on ./nodebb start

but can start on ./nodebb dev
thanks for advance

as you see

is really bad ux it's must not hide

like ss

@alff0x1f Fix this

How To Add Swap on Ubuntu 14.04 | DigitalOcean