What are all the causes of lymphopenia and neutropenia in the same patient please.?

In 400 characters? Need some specific numbers and a more focused question. If there are major issues here then you need a comprehensive consultation with a hematologist.
Numberous. There are numerous causes of low(penia) lymphocytes and neutrophils. If transient, likely a viral infection. If persistent and/or severe may need a bone marrow biopsy. Listing 100's of causes is not useful. Just need evaluation to figure it out.