You Do Need power plug adapter while traveling from Comoros to Bolivia.

Here is Why You Need An Adapter

The outlet and plug type used in Bolivia are A and C and in Comoros are C and E. This is how they look like.

Comoros

In Comoros, outlets of type C and E are in use.

Type C

Type E

Bolivia

In Bolivia, outlets of type A and C are in use.

Type A

Type C