An error occurred while searching for Collectives - Page Content

I’m still getting this error when I’m searching in Nextcloud 25.0.6 with the current version of the collectives app. I’ve seen this closed issue An error occurred while searching for Collectives - Page Content · Issue #492 · nextcloud/collectives · GitHub in Github, but it seems this issue should be resolved with Collectives 2.2.1.
Sqlite and pdo PHP extensions are installed and active, checked by php -m.

[PHP Modules]
apcu
bcmath
bz2
calendar
Core
ctype
curl
date
dom
exif
FFI
fileinfo
filter
ftp
gd
gettext
gmp
hash
iconv
igbinary
imagick
intl
json
ldap
libsmbclient
libxml
mbstring
mysqli
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_pgsql
pdo_sqlite
pgsql
Phar
posix
readline
redis
Reflection
session
shmop
SimpleXML
smbclient
sockets
sodium
SPL
sqlite3
standard
sysvmsg
sysvsem
sysvshm
tokenizer
xml
xmlreader
xmlwriter
xsl
Zend OPcache
zip
zlib

[Zend Modules]
Zend OPcache