alfa diversity failure

Hello. I am trying to perform a Statistics analysis. I reviewed the pipeline (Diversity methods) and I am trying to get the α-diversity.

when I run the alpha diversity report function, it works without any problems.

But when I want to get the plots (option: Plot figure using ggplot2: Yes), the server gives me an error message:

Warning messages:

1: Removed 6 rows containing missing values ​​(geom_bar).
2: Removed 6 rows containing missing values ​​(geom_errorbar).
3: Removed 6 rows containing missing values ​​(geom_bar).
4: Removed 6 rows containing missing values ​​(geom_errorbar).
5: Removed 6 rows containing missing values ​​(geom_bar).
6: Removed 6 rows containing missing values ​​(geom_errorbar).
7: Removed 6 rows containing missing values ​​(geom_bar).
8: Removed 6 rows containing missing values ​​(geom_errorbar).

I uploaded a file with its corresponding tab in txt format. Could you help me solve this problem please?