uploadtmp_dir appears to be misspelled in php.ini / [nc-datadir.sh](https://github.com/nextcloud/nextcloudpi/blob/f64af68384a359a7c008deb2ef2ab8940f15ba84/bin/ncp/CONFIG/nc-datadir.sh#L138) configuration, it should be upload_tmp_dir according to official [documentation](https://www.php.net/manual/en/ini.core.php#ini.upload-tmp-dir) https://github.com/nextcloud/nextcloudpi/issues/1750 seems to be related