Whenever I tried to click Edit-Preferences. It's not proceeding

I'm trying to use a script(Motion Tools Pro). But when I try to use it the error "Allow scripts to write file and access network" comes up and guides me to do it on (Edit-Preferences). But whenever I do that after effects hang up. I already tried removing the(Motion Tools Pro) if it will help. But it's not, then I tried to reinstall and clear all disks on after effects. It's still the same even if I try (Reset Preferences) and Start in on Safe Mode. I'm currently on a free trial. Please help me!