Nextcloud keeps crashing - SQLITE error

[Jonas Gamao]

When I ran it from the command line, here's what I got:

```
$ nextcloud

(nextcloud:29940): Gtk-WARNING **: 04:11:30.081: Unable to locate theme engine in module_path: "adwaita",

(nextcloud:29940): Gtk-WARNING **: 04:11:30.085: Unable to locate theme engine in module_path: "adwaita",
2021-06-20 04:11:36:373 [ fatal default ]: ENFORCE: "allow_failure" in file ./src/common/ownsql.cpp, line 265 with message: SQLITE Prepare error
Aborted (core dumped)
```

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: nextcloud-desktop 3.1.1-2ubuntu1
ProcVersionSignature: Ubuntu 5.11.0-18.19+21.10.1-generic 5.11.17
Uname: Linux 5.11.0-18-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.11-0ubuntu67
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: MATE
Date: Sun Jun 20 04:08:13 2021
InstallationDate: Installed on 2021-06-10 (10 days ago)
InstallationMedia: Ubuntu-MATE 21.10 "Impish Indri" - Alpha amd64 (20210609)
SourcePackage: nextcloud-desktop
UpgradeStatus: No upgrade log present (probably fresh install)