Hi, I am trying to install the paypal extension on a fresh shop installation, I get only a white page, the error log shows

2023-08-15 18:27:43 - Unknown Error: AbanteCart core v.1.3.4 Epoch doesn't fit in a PHP integer in <b>/htdocs/core/helper/utils.php</b> on line <b>435</b>

please help

2021-08-20 15:54:03 - App Error:  AbanteCart core v.1.3 Cannot establish database connection to AbanteCart using margitta@localhost
Trace:
   #0 /htdocs/core/database/amysqli.php on line 52
   #1 /htdocs/core/lib/db.php on line 52
   #2 /htdocs/install/model/install.php on line 93
   #3 /htdocs/install/controller/pages/install.php on line 180
   #4 /htdocs/install/controller/pages/install.php on line 60

Hello,
I try to install AbanteCart cart, but after sending the database details, I get this error, "Following error has occurred during installation:" with no number or explication.

at the second page,all things are market green....
please help