Alert transport do not receive or recieve incorrectly or with looong delay

hi, i have problems with transport.
Yesterday i stopped getting any alert in my telegream bot. Test transport worked correctly, in alert hystory, too everything correctly, but no one notification came. I reset everything rules to default but nothing changes. At night I started to receive notifications, some on time, but some on about 6 hours ago alert
Now i get multiple notification at once, with 15 minutes delay, some notification about one alert repeat and repeat again. Аnd also for example I get ping latency notifications but I don’t get “device up/down” although the rule and transport settings are the same

my validate:====================================

Component Version
LibreNMS 21.4.0-18-g07900cc
DB Schema 2021_04_08_151101_add_foreign_keys_to_port_group_port_table (208)
PHP 7.3.27
Python 3.6.8
MySQL 10.2.37-MariaDB
RRDTool 1.4.8
SNMP NET-SNMP 5.7.2

====================================

[OK] Composer Version: 2.0.12
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
[WARN] Log rotation not enabled, could cause disk space issues
[FIX]:
sudo cp /opt/librenms/misc/librenms.logrotate /etc/logrotate.d/librenms
[WARN] Your local git contains modified files, this could prevent automatic updates.
[FIX]:
You can fix this with ./scripts/github-remove

I do not understand at all what is happening. What other tests i can do for find a problem?
and once again note - from device to lnms everything correct and is on time, from lnms to telegram test transport come at time the click,
something wrong between this steps