Hi Dagoberto Torres,
Please take my sincere appology for not being there.
I have checked your backend, there I have found an instance of SP Page Builder. Here is a screenshot:
https://prnt.sc/7W4FV6CrTcl1
Kindly go to this Path using hosting panel: /var/www/html/research/administrator/components/com_sppagebuilder
And this Path too: /var/www/html/research/components/com_sppagebuilder
Then remove com_sppagebuilder folder from both location.
Clear your Joomla and browser cache. It should let you install SP Page Builder Pro then.
Best Regards