Hi @Patricia Moore,
Use a strong light and a magnifying glass to visually inspect the tablet’s micro USB charge port for any physical damage to the pins i.e. bent or missing.
If they appear to be OK, check the charger’s micro USB plug as well.
If the tablet’s charge port is damaged then see the answer directly above this one.
If the charger’s plug is damaged then see the Chosen Solution above about how to charge from a computer etc.