Hello, my name is Dan.
I will do my best to help you, the only stupid question is the unasked one.
Try resetting Safari.
Those are the two I start with but it make take others.
A restart is also agood starting point. A pram reset can't hurt either.
To do a PRAM reset, you need to restart your machine and hold down these 4 keys.
‘Option’, ‘Command (Cloverleaf or Apple)’, ‘R’ and 'P'.
Keep them down until you hear 4 startup chimes, this is the sound that your computer makes when it starts up, it is like a boonngg. The screen should also cycle from white to black and then back to white along with the chimes.
If you have a wireless keyboard then the procedure is a little bit different and becomes much harder, it can be done but a USB keyboard is recommended.
Use the very same keys but wait until the first chime and immediately press and hold those keys. I recommend getting your fingers ready because timing is critical.
This resets all of the system buses on your computer, USB, FireWire, display, ethernet and your keyboard/mouse/trackpad.
This will correct many faults but not necessarily yours.
None of these are guaranteed to work but are good starting points.
Please let me know.