Unable to import the GB-T 7714-1987(numeric,etal,no doi.csl) reference format

smileflower

Unexpected errors occur during installation.I wanted to change the code so that the doi number was not displayed, but something went wrong. Recopying the right code didn't help.https://s3.amazonaws.com/zotero.org/images/forums/u15435335/eqx640z5kaeu789uufw5.png

so how can i solve this problem ,i must use this format