Every time I try to deploy any code from sandbox to production if gives the error failed with two test classes failing within the organization, the test classes are tom_test_status_changes and tom_test_status_changes. Even on running these classes itself in the production the test fails.
The error message it gives is
System.DmlException: Update failed. First exception on row 0 with id a0WG000000LAcROMA1; first error: TRANSFER_REQUIRES_READ, The new owner must have read permission: 
for both the test classes. I tried the solutions given on other threads with similar problem to check for owner permissions and also removing the with sharing keyword in the apex class. Still the problem persists.
I would really appreciate if anyone of you geeks can help me solve the problem. It is really urgent as I need to immediately deploy the new updates to the organization.