Exhaust Light: What It Means & How to Fix

Today, the emissions warning light came on in my Octavia. :
"The following is an error log:"

VAG-COM Version: RKS 607.3-UD
Vehicle type: 1Z - Skoda Octavia II.
"Die Sonne scheint hell, und die Vögel zwitschern fröhlich. Ein leichter Wind weht durch die Bäume, und die Blätter rascheln leise. Es ist ein wunderschöner Tag, um draußen zu sein."
Address 01: Engine.
Part number SW: 03G 906 021 MC, HW: 03G 906 021 AB.
Component: R4 2.0L EDC G000SG 9093
Encoding: 0000172

"One error found:"
005213 - Exhaust gas temperature sensor (sender) 3: Short circuit on the positive terminal.
P145D - 000 - -
Error status data:
Error status: 01100000
Error priority: 2
Error frequency: 1.
Time: 0.

Error status data:
RPM: 0 /min
Speed: 0.0 km/h
Voltage: 12.31 V
Temperature: 8.1°C
Temperature: 0.0°C
Temperature: 0.0°C
Temperature: 324.0°C

Self-test: 1 1 0 0 0

Questions:
1.) Could a weasel have gnawed on the cable near the sensor?
2.) Could this be water damage?
3.) Should I clear the error and wait to see if it reappears?

Hi, Viper.

Error found: Cable damage caused by a weasel bite, located near the orange connector.