Dumps with SP10

Hi gurus,

after implementing SP10, we get all 3 min a dump:

any idea ?

thanks in advance

Thomas

Category               ABAP Programming Error
Runtime Errors         OBJECTS_OBJREF_NOT_ASSIGNED
ABAP Program           CL_ACE_RULE_FACTORY===========CP
Application Component  SV-SMG-MON-ALR-CLC
Date and Time          02.04.2014 13:38:44

Short text
     Access via 'NULL' object reference not possible.

User and Transaction
    Client.............. 100
    User................ "SOLMAN_BTC"
    Language key........ "E"
    Transaction......... " "
    Transaction ID...... "533B0B77D2290340E10080000A022A5A"

    EPP Whole Context ID.... "505624FBD13F0BF0E10080000A022A5A"
    EPP Connection ID....... "533B0B79D2290340E10080000A022A5A"
    EPP Caller Counter...... 1

    Program............. "CL_ACE_RULE_FACTORY===========CP"
    Screen.............. "SAPMSSY1 3004"
    Screen Line......... 2
    Debugger Active..... "none"

Client.............. 100

User................ "SOLMAN_BTC"

Transaction......... " "

Call Program........."CL_ACE_CONTROLLER=============CP"

Function Module..... "ACE_CALCULATE"