ERROR: Can’t save dbinstall data file

Hi, I’m trying for the tenth time now using Duplicator on multiple providers, but every time I get errors and the migration doesn’t complete.

While installing in Step 2 I get
ERROR: Can't save dbinstall data file

and in the other fields:

Server Code: 200
Status: success
Response: {"success":false,"message":"Can't save dbinstall data file","errorContent":{"pre":"EXCEPTION ERROR: Can't save dbinstall data file\n\tFILE:\/homepages\/22\/d564600118\/htdocs\/clickandbuilds\/newwebsite\/dup-installer\/ctrls\/classes\/class.ctrl.dbinstall.php[369]\n\tTRACE:\n#0 \/homepages\/22\/d564600118\/htdocs\/clickandbuilds\/newwebsite\/dup-installer\/ctrls\/classes\/class.ctrl.dbinstall.php(112): DUPX_DBInstall->saveData()\n#1 \/homepages\/22\/d564600118\/htdocs\/clickandbuilds\/newwebsite\/dup-installer\/ctrls\/classes\/class.ctrl.dbinstall.php(94): DUPX_DBInstall->initData()\n#2 \/homepages\/22\/d564600118\/htdocs\/clickandbuilds\/newwebsite\/dup-installer\/ctrls\/classes\/class.ctrl.dbinstall.php(84): DUPX_DBInstall->__construct()\n#3 \/homepages\/22\/d564600118\/htdocs\/clickandbuilds\/newwebsite\/dup-installer\/ctrls\/classes\/class.ctrl.ajax.php(210): DUPX_DBInstall::getInstance()\n#4 \/homepages\/22\/d564600118\/htdocs\/clickandbuilds\/newwebsite\/dup-installer\/ctrls\/classes\/class.ctrl.ajax.php(92): DUPX_Ctrl_ajax::actions('dbinstall')\n#5 \/homepages\/22\/d564600118\/htdocs\/clickandbuilds\/newwebsite\/dup-installer\/main.installer.php(56): DUPX_Ctrl_ajax::controller()\n#6 {main}","html":""}}

and

EXCEPTION ERROR:  Can't save dbinstall data file
	FILE:/homepages/22/d564600118/htdocs/clickandbuilds/newwebsite/dup-installer/ctrls/classes/class.ctrl.dbinstall.php[369]
	TRACE:
#0 /homepages/22/d564600118/htdocs/clickandbuilds/newwebsite/dup-installer/ctrls/classes/class.ctrl.dbinstall.php(112): DUPX_DBInstall->saveData()
#1 /homepages/22/d564600118/htdocs/clickandbuilds/newwebsite/dup-installer/ctrls/classes/class.ctrl.dbinstall.php(94): DUPX_DBInstall->initData()
#2 /homepages/22/d564600118/htdocs/clickandbuilds/newwebsite/dup-installer/ctrls/classes/class.ctrl.dbinstall.php(84): DUPX_DBInstall->__construct()
#3 /homepages/22/d564600118/htdocs/clickandbuilds/newwebsite/dup-installer/ctrls/classes/class.ctrl.ajax.php(210): DUPX_DBInstall::getInstance()
#4 /homepages/22/d564600118/htdocs/clickandbuilds/newwebsite/dup-installer/ctrls/classes/class.ctrl.ajax.php(92): DUPX_Ctrl_ajax::actions('dbinstall')
#5 /homepages/22/d564600118/htdocs/clickandbuilds/newwebsite/dup-installer/main.installer.php(56): DUPX_Ctrl_ajax::controller()
#6 {main}

Can you please advise me what I can do?

Thanks a lot!