Yes!
Bolivians, or Bolivia passport holders, require a visa to enter Mozambique. The safest option is to apply for a preliminary visa on www.evisa.gov.mz at least 2 weeks before travelling to Mozambique. In this application you will need to upload copies of your documents, bank statements, and accommodation reservations. If accepted you will receive an electronic preliminary visa that you can present when arriving in Mozambique.
The cost of the visa is 9.837,00 MZN (about $155USD) plus the service charge over about $35USD - this amount is not reimbursed if the visa request is denied.
This is the cheapest option for a Bolivian and is valid for 30 days. There are also options for 60 and 90 days.