Freezer cools well, refirgator is warm, the vent that brings air from frezer to refrigator has no air movement, ice inside , i broke some ice with knife shoul di spray hot water to get rid rest , I did...
This answer will be somewhat long, but in order to understand the "fix" for your problem you need to understand how a refrigerator-freezer works.
Most units have ONE COMPRESSOR which usually cools the FREEZER. Then, to cool the fridge area, there is a DUCT or ducts between the freezer and the fridge area to move some small amount of very cold freezer air into the fridge section. In the old days this occurred by convection, but most newer units have a small fan in the duct to more dependably move the air.
The run time of the compressor, and thus the temperature of the freezer is usually controlled by a THERMOSTAT [usually with numbers on the dial]. A second control [usually with the letters A, B, C, and sometimes even D] operates either a DAMPER in the duct, or controls the duration of fan operation in order to control the temperature in the fridge section.
Under certain conditions of higher humidity, FROST [fine ice crystals] can build up in the duct, and on the fan if there is one, reducing or totally blocking the cold air flow from the freezer to the fridge section.
From your description of the freezer working well, but the fridge section being "warm" suggests that blockage of the duct is what has happened. However, there are a couple of other possibilities:
1. You inadvertantly moved the fridge control to a warmer setting,
2. You inadvertantly placed something in the freezer and/or fridge which BLOCKED the entrance or exit of the duct,
IF one of the above are the cause, a "manual" defrost of a few hours with the freezer and fridge doors open to allow warmer air in should melt out any frost/ice from the duct and allow the system to work properly. Depending on the severity of the frost/ice buildup, it could take a couple of days to fully melt all the frost/ice.
During the manual defrost ALL frozen and perishable foods should be temporary stored in an ice chest or cooler of some kind.
One more thing, in addition to heavy humidity, frost/ice buildup can also be caused by a defective automatic DEFROST TIMER. IF the system does not do its regular defrost cycle [usually an hour or two once in each 24 hours], then frost/ice buildup can occur even with "normal" humidities.
So, once you have the system back in operation, watch for the normal cycling of the defrost program, and if the problem continues, contact a qualified refrigeration repair technician to repair or replace the defrost TIMER.