Observium stop draw graphs

Command ./poller.php -h 237 -m sensors -dd

show error during processing:

for database "sensors"
SQL WARNINGS[
1364: Field 'sensor_class' doesn't have a default value
1364: Field 'sensor_oid' doesn't have a default value
]

The drawing graps stop after update database and PHP 7.2 and I test now 7.4:

o OS Linux 3.10.0-1127.19.1.el7.x86_64 [amd64] (CentOS 7)
o Apache 2.4.6
o PHP 7.4.11 (OPcache: ENABLED)
o Python 2.7.5
o MariaDB 10.4.15-MariaDB (extension: mysqli 7.4.11)
o SNMP NET-SNMP 5.7.2
o RRDtool 1.7.1
o Fping 3.10 (IPv4 only)

The files rrd are in folder and script say it is not necesary to create
Example one file:
rw-rr-. 1 apache apache 117272 Oct 22 14:40 processor-cpm-7.rrd

ps -fe show over 2004 running processes like:
root 8770 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 283
root 8774 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 277
root 8775 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 272
root 8776 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 263
root 8777 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 262
root 8779 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 164
root 8781 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 295
root 8783 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 302
root 8785 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 317
root 8788 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 350
root 8789 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 349
root 8793 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 344
root 8795 8550 0 14:35 ? 00:00:00 php /opt/observium/poller.php -q -h 347
root 8798 9031 0 13:40 ? 00:00:00 php /opt/observium/poller.php -q -h 448
root 8801 8798 0 13:40 ? 00:00:00 /usr/bin/rrdtool -
root 8803 8774 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8811 8770 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8827 8767 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8828 8779 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8831 8776 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8832 8764 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8837 8785 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8841 8775 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8842 8777 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8849 8781 0 14:35 ? 00:00:00 /usr/bin/rrdtool -
root 8853 8793 0 14:35 ? 00:00:00 /usr/bin/rrdtool -