Getting error message on charitable contribution entry

Yes I am. If I have no entries on the cash contributions smart worksheet, no errors. As soon as I enter a description and amount on the contributions worksheet, it flows to line 10a of 1040. Then line 10b (which is blank) is highlighted (in pink on my screen) indicating an error. If I enter $150, it calculates for a couple seconds and then gives an error message that there is an unacceptable value in 10b. I tried numerous amounts, all under $150, even tried entering "0" and it tells me I have an unacceptable value but it doesn't tell me what is unacceptable about it, i.e., too high, too low, etc.

Basic looks exactly the same. If I have no entries on the cash contributions smart worksheet, no errors. As soon as I enter a description and amount on the contributions worksheet, it flows to line 10a of 1040. Then line 10b (which is blank) is highlighted (in pink on my screen) indicating an error. If I enter $150, it calculates for a couple seconds and then gives an error message that there is an unacceptable value in 10b. I tried numerous amounts, all under $150, even tried entering "0" and it tells me I have an unacceptable value but it doesn't tell me what is unacceptable about it, i.e., too high, too low, etc. I'm thinking I should probably delete the file and start over.