I don’t see your code, so I can’t say what’s wrong. But if you provide an example, then I can describe it in details.

The most common mistakes:

• forgetting about the remainder of the lines after cleaning
• calculate result after cleaning, and not before

I see that the problem appears after a level is increased, but I don't know the reason. In my version I have a sum var, which is the sum of the values in the array (I'm adding new values in the for cycle where I compute the points). If the sum is greater than or equal to ten, I subtract ten from it and increase the level variable by one.

Follow the example and find the mistake by yourself. Write, please, if it doesn’t help.

for input [2, 0, 2, 4, 4, 0, 4, 3, 0, 0, 0, 1, 0, 0, 2, 4, 0, 1, 3, 4, 2, 0, 2, 1, 4, 2, 0, 0, 1, 3, 1, 4, 4]

right yours
0	0
100	100
100	100
200	200
1400	1400
2600	2600
2600	2600
5000	3800
5600	4100
5600	4100
5600	4100
5600	4100
5680	4140
5680	4140
5680	4140
5980	4440
9580	8040
9580	8040
9700	8160
10600	9060
15400	13860
15800	14260
15800	14260
16200	14660
16360	14820
21160	19620
21660	20020
21660	20020
21660	20020
21860	20180
23360	21380
23560	21540
30760	27540

Note that after increasing the level, the total number of cleared lines is not reset.

That.

Not a kata issue.