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The problem is that your dishwasher is in flood mode. You'd need to remove the bottom drawer and soak up all the water in the base pan below the bottom drawer with a towel and then use a hair dryer or fan to dry all the remaining water under the electronic components against the back mounted to the base pan in order to reset the error. The other way you can approach the issue is to just leave the unit unplugged for about a week and let all the water evaporate. Then it should work normally once again once it dries out.
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