Reward Points Module for ZC v13x

[zafer]

I am running 1.3.8a from the start. I upgraded from rewards 1.11a

Also my checkout is now a blank screen. When I debug the error is:

PHP Fatal error: Cannot redeclare class ot_reward_points in /home/pillownp/public_html/includes/modules/order_total/ot_reward_points.php on line 23


Thank you for your help

Shall I uninstall sql? Please advise