Self Registration fails

[MrClever]

NOTE: this appears to be fixed in 4.0.4 can we push a release?

When bEnableSelfRegistration is True, the self-registration process moves through steps one and two successfully, but on the third step, to complete the registration the following error is thrown:

The following error is captured in the (see link for full trace)2020-05-19-php.log:

[19-May-2020 13:16:39 Australia/Sydney] Slim Application Error:
Type: Error
Message: Class 'Symfony\Component\Translation\IdentityTranslator' not found
File: /var/www/site.domain.example/ChurchCRM/model/ChurchCRM/Base/Family.php
Line: 3731

Apache's access.log records the following 500 error (although nothing was recorded in the error.log - which is a fault with my hosting)

180.x.y.z - - [19/May/2020:13:16:39 +1000] "POST /api/public/register/family HTTP/1.1" 500 818 "https://site.domain.example/external/register/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML,like Gecko) Version/13.1 Safari/605.1.15"

On what page in the application did you find this issue?

Self-registration from the login screen, eg, https://site.domain.example/external/register/

On what type of server is this running? Dedicated / Shared hosting? Linux / Windows?

Dedicated (Debian 10 running on Google Cloud Compute)

What browser (and version) are you running?

Safari 13.1 (also tested latest Chrome, Brave and Firefox with the same result)

What version of PHP is the server running?

7.3.14

What version of SQL Server are you running?

5.5.5-10.3.22-MariaDB

What version of ChurchCRM are you running?

4.0.3 (also tested 4.0.2 with the same result)

[MrClever]

Duplicates #5179 (mea culpa)