The dryer is showing anti crease on the LCD. What can i do to reset or fix the problem.

you probably has a clogged venting. all newer electronic dryer stops when detects any problem including vent

Sounds to me like a logic board problem. 24 H power down would have fixed any transient problems. So it is a hard failure This means a sensor, or a processor failure. I think it is a processor board.
Good Luck,
Pete

Check the dryer vent to see if it is free and clear.

What make and model dryer?

im not sure if your model of dryer but here is some instructions
Child lock
When activated, the child lock prevents the dryer from being operated by locking the control panel functions.
The dryer can be turned on but not started. The "Child lock" indicator will flash.
The door can be opened.
To activate the child lock
1. Make sure the dryer is turned off and
the door is closed.
2. Press and hold the "Anti-crease" and "DRYNESS" buttons at the same time, hold until step 5.
3. Turn on the dryer with the "On/Off" button.
4. Press the "OPTIONS" button 3 times. 5. Release the "Anti-crease" and
"DRYNESS" buttons.
The "Child lock" indicator will flash and the dryer is now locked.
6. Turn off the dryer using the "On/Off" button.
To deactivate the child lock Repeat steps 1. to 5.
The "Child lock" indicator will go out. The control panel is now unlocked.
6. Turn off the dryer using the "On/Off" button.

you will have to show it to macanic he will open the machine and he will reinstall it

This may be a simple control fault that can be reset by unplugging for 5 minutes or switching the breaker switch off for five minutes also. if the five minute reset doesn't restore the machine to its original operational value, you will then need to replace the main control board in this unit. it has failed.

Most likely the heating element or a thermostat.