I dropped the Camcorder, SONY DCR DVD108 and now

Error E:61:10 means that some elements of your lens system were misaligned. Now the simplest way to get rid of this problem is to do the very thing that caused it in the first instance. Bang the lens in a controlled manner against a hard surface(wood is preffered) while switching it off and on several times until the fault goes away . dont continue banging it when the fault goes away!
Good luck.