Can't import companies after setting wrong Delimiter

Hello

I was trying to import my companies contacts, but unfortunately i have setup wrong Delimiter. Right now when i want to import contacts to companies there is Error 500.
I was trying to clear cache but didnt help.

Logs from mautic


[2018-02-06 08:34:02] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:34:08] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:34:13] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:34:48] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:37:56] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:37:59] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:42:40] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:46:01] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:46:03] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:46:12] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []
[2018-02-06 08:46:13] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Form\Exception\LogicException: "A form with an empty name cannot have a parent form." at /home/******/websites/mautic/vendor/symfony/form/Form.php line 273 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\LogicException(code: 0): A form with an empty name cannot have a parent form. at /home/******/websites/mautic/vendor/symfony/form/Form.php:273)"} []

Anyone can help ?
Same thing with contacts :confused:

Please take a look at the comment under https://github.com/mautic/mautic/issues/4937#issuecomment-336649636

Is your issue similar?