assuming you want to trouble-shoot this message.
Do the BITE test of the EFCS (ground scanning) Ref. AMM 27-96-00-740-00
Carry out this TSM proc TASK 27-93-00-810-836-A Incorrect Position of the THS for the ELAC 2.
And this TASK 27-96-00-710-022-A Operational Test of the THS Actuator Electrical Control (Activation for BITE Test).
That should help you isolate the fault.
You're getting quite a few other messages at the same time. What was the ECAM status prior to the engines being started??