Unable to Unclear Cash flows

Dear Team,

We have created bank transfer both inflow and outflow, and those were cleared in status.

Inflow cash flow accounting was showing as partially accounted, however outflow where the accounting shows as Unaccounted from the front end.

However we checked from the back end( xla_events) the respective event_id shows as processed.

Business asked on priority basis so we tried to unclear both the inflow and outflow and cancel the outflows

Inflow we have successfully unclear where the accounting was partially accounted, but we are unable to unclear the outflow. As we are facing the below error

APP-XLA-95103 An internal error occured. Please inform your system administrator or support representative that: