Mysql error PDOStatement::execute(): MySQL server has gone away using Laravel and curl request

I am using a 3rd party API to insert data in the database. I encountered this problem already in my local computer and I set the max_allowed_packet as what other posts said and it worked for me. But now I am using our linux remote server to insert the data. I cant find the my.ini or some config file but there are similar file and here named 50-server.cnf are some he contents of it

#
# * Fine Tuning
#
key_buffer_size     = 16M
max_allowed_packet  = 1024M
thread_stack        = 192K
thread_cache_size       = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam_recover_options  = BACKUP
#max_connections        = 100
#table_cache            = 64
#thread_concurrency     = 10

#
# * Query Cache Configuration
#
query_cache_limit   = 32M
query_cache_size        = 1024M

I have also written a bunch of queries in our linux remote terminal in order to set the global variables. Here are some of it

sudo mysql

SET SESSION wait_timeout = 999999;

SET SESSION net_read_timeout = 1000

SET GLOBAL connect_timeout = 1000;

after that i run sudo /etc/init.d/mysql restart then I execute my controller function but I still get PDOStatement::execute(): MySQL server has gone away

I am using

Mysql: mysql Ver 15.1 Distrib 10.1.43-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2

Linux: Linux ip-172-31-16-16 4.15.0-1054-aws #56-Ubuntu SMP Thu Nov 7 16:15:59 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

PHP: Zend Engine v3.3.11, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.3.11-1+ubuntu18.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies

MariaDB: mariadb Ver 15.1 Distrib 10.1.43-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2

Can someone tell me what is the problem with this?