Accounting module malfunction-Urgent Please

Dear All
Support urgently since the update from 6.0.0 to 7.0.0 below issues arised.

  1. Multicompany module is installed with updated to 6.0.1 and total 5 entities are there including main entity
  2. Ledger is empty since journalisation not working inspite of linking of invoices and expenses have done
  3. Account balance and Reporting for income/expense/turnover also empty
  4. Left menu of Journalisation showing No journal defined in entities except for main entity.
  5. In Accountancy-Setp-Chart of accounts models not appearing as expected (earlier we have uploaded English chart of accounts manually in 6.0.0)
  6. Screen shots attached for your reference
    Please sort out and support me urgently.
    Sincerely.