Hi Indresh,
Thank you so much. We manage our servers ourselves. It is true that phpinfo still shows the older version of sqlite, but if this would be the cause of the error in question, then fresh installation of the version also be having this error. Yes, the fresh installation is working fine as you can check in the following link although the phpinfo even here shows the older version of Sqlite3.
https://nearest.oplmart.com
https://nearest.oplmart.com/phpinfo.php
Thanks & Regards,
Arshad