I have solved this issue. As below:
--- a/sentry.conf.py
+++ b/sentry.conf.py
@@ -247,6 +247,7 @@ SENTRY_WEB_HOST = '0.0.0.0'
SENTRY_WEB_PORT = 9000
SENTRY_WEB_OPTIONS = {
# 'workers': 3, # the number of web workers
+ 'limit-post': 1024 * 1024 * 1024 * 2
}