SSLCOMMERZ is a biggest Bangladeshi payment gateway. I found an older version of the module here: https://github.com/blesta/gateway-sslcommerz . But it's no longer working with latest Blesta v5.9.0 or SSLCOMMERZ latest API v4. As I found this module was made with API v3 & now SSLCOMMERZ running API v4. If I update API v3 to v4 then I found some parameters are missing, if added the missing parameter still it's not working. So, I think there have need few small changes to make it working with latest Blesta & latest SSLCOMMERZ API.

Kindly, update it asap. It will help all Bangladeshi hosting provider who are already using Blesta or having plan to use Blesta.