Cannot login

Good morning.

I've installed ProjeQtor on my Ubuntu 16.04 server.
Everything seems to go well and I immediately see the projeqtor configuration page.
The server is running plesk and the projeqtor is under a subfolder (myservername.com/projeqtor).

After configuration I see the login page.

Every combination user - pwd fails: "login parameters not valid".

I've tryed to change the password directly on the db, but same result.
If I push the "forget password" button, it gets stucked indefinitely.

See no error log in apache2 log file.

apache2 -v
Server version: Apache/2.4.18 (Ubuntu)

Php -v
PHP 7.0.30-0ubuntu0.16.04.1 (cli) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
with the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured) v10.0.3, Copyright (c) 2002-2017, by ionCube Ltd.
with Zend OPcache v7.0.30-0ubuntu0.16.04.1, Copyright (c) 1999-2017, by Zend Technologies

What's wrong? Can you help me?

Regards.
Rocco Iacchetti.

Sorry
The button is "Cambia Password" in italian, i.e. "Change password", not forget password.
My fault.

But I cannot login even the first time and even resetting the password through the db directly.

Could it be a Firefox problem?
Should I use another browser?

Can I give you the server link so you can make a try directly?
I really do not know what to do ...

" If connection works only once you have a cryptographic issue. Check your php modules. "

Ok, it could be.
This is my php -m result:

root@server:/home/rocco# php -m
[PHP Modules]
calendar
Core
ctype
curl
date
dom
exif
fileinfo
filter
ftp
gd
gettext
hash
iconv
imap
ionCube Loader
json
libxml
mbstring
mysqli
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
posix
readline
Reflection
session
shmop
SimpleXML
sockets
SPL
sqlite3
standard
sysvmsg
sysvsem
sysvshm
tokenizer
wddx
xml
xmlreader
xmlwriter
xsl
Zend OPcache
zip
zlib

[Zend Modules]
Zend OPcache
the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured)

Do you see if I miss something?

Thank you.

I've tryed redoing the configuration from the beginning.
I need to reset manually the password once, but then everything is ok.
We are starting using it, very complete tool.

Thanks for this.