Micros 3700 Res 5.2 POS API error

Hello,

Can anyone help with POS API 3700d log error? The POS API can create the check but  the menu items cannot be posted. Item numbers and menu classes have been checked.

Specifically this line: Invalid database object detected. [0xc70103ea] Database structure is not valid. [CStructWrapper<struct MDSRESDBSPROXYLib::str_tmed_def>::AssertValid:22] |

Fri Feb 01 11:54:58 2019 | PRGCAWGMC       | POSAPI          |        0 | CTransactionServices::PostTransactionEx called on thread 9680 |

Fri Feb 01 11:54:58 2019 | PRGCAWGMC       | POSAPI          |        0 | Entered PostTransaction |

Fri Feb 01 11:54:58 2019 | PRGCAWGMC       | POSAPI          |        0 | Create check Succeeded Check num 6645 Check Sequence 428980 Check id Trevor 214:03:58 |

Fri Feb 01 11:54:58 2019 | PRGCAWGMC       | POSAPI          |        0 | Add Menu Item called for Menu Item Seq 7783 Menu Item COKE TEST |

Fri Feb 01 11:54:58 2019 | PRGCAWGMC       | POSAPI          |        0 | Invalid database object detected. [0xc70103ea] Database structure is not valid. [CStructWrapper<struct MDSRESDBSPROXYLib::str_tmed_def>::AssertValid:22] |