I did what is described in this this post, and after that I am not able to run scripts that are on my external ssd, not even after using the sudo su command.

the output of findmnt -T /media/alexandre/Externo:
root@thinkPad:/media/alexandre/Externo/scrips-automacao-linux# findmnt -T /media/alexandre/Externo
TARGET SOURCE FSTYPE OPTIONS
/media/alexandre/Externo /dev/sda1 ext4 rw,nosuid,nodev,noexec,relatime
I used the following command: UUID="3945e28a-a767-4abc-bb45-f4d843fef1b6" /media/alexandre/Externo ext4 defaults,user,auto 0 1