Memcache Service ok, But Error PHP Startup: Unable to load dynamic library 'memcached.so'

[details=“Support intro”]

Der Memecache Dienst läuft.
● memcached.service - memcached daemon
Loaded: loaded (/lib/systemd/system/memcached.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2021-12-25 18:33:07 CET; 1 day 13h ago
Docs: man:memcached(1)
Main PID: 1230 (memcached)
Tasks: 10 (limit: 11879)
Memory: 3.8M
CGroup: /system.slice/memcached.service
└─1230 /usr/bin/memcached -m 2560 -p 11211 -u memcache -l 0.0.0.0 -P /var/run/memcached/memcached.pid

Dez 25 18:33:07 cloud systemd[1]: Started memcached daemon.

Doch ich bekomme folgenden Fehler.
[PHP] Error: PHP Startup: Unable to load dynamic library ‘memcached.so’ (tried: /usr/lib/php/20190902/memcached.so (/usr/lib/php/20190902/memcached.so: undefined symbol: zend_wrong_parameter_error), /usr/lib/php/20190902/memcached.so.so (/usr/lib/php/20190902/memcached.so.so: cannot open shared object file: No such file or directory)) at Unknown#0

PROPFIND /remote.php/webdav/Qt/5.12.6/Src/qtbase/qmake/doc/snippets
from “internal user”

Aus diesem Grund laufen keine occ abfragen mehr.
Kann mir jemand einen Tipp geben?

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[details = “Support intro”]

The memecache service is running.
● memcached.service - memcached daemon
Loaded: loaded (/lib/systemd/system/memcached.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2021-12-25 18:33:07 CET; 1 day 13h ago
Docs: man: memcached (1)
Main PID: 1230 (memcached)
Tasks: 10 (limit: 11879)
Memory: 3.8M
CGroup: /system.slice/memcached.service
└─1230 / usr / bin / memcached -m 2560 -p 11211 -u memcache -l 0.0.0.0 -P /var/run/memcached/memcached.pid

Dec 25 18:33:07 cloud systemd [1]: Started memcached daemon.

But I get the following error.
[PHP] Error: PHP Startup: Unable to load dynamic library ‘memcached.so’ (tried: /usr/lib/php/20190902/memcached.so (/usr/lib/php/20190902/memcached.so: undefined symbol: zend_wrong_parameter_error), /usr/lib/php/20190902/memcached.so.so (/usr/lib/php/20190902/memcached.so.so: cannot open shared object file: No such file or directory)) at Unknown # 0

PROPFIND /remote.php/webdav/Qt/5.12.6/Src/qtbase/qmake/doc/snippets
from “internal user”

For this reason there are no more occ queries.
Can anyone give me a hint?

Schaut mal hier.

das hat geholfen!