Thanks for the pointer, SELinux was my issue.

For anyone else getting this error we relabled after that I started getting 4 errors saying it couldn't write to temp, src, templates_c and cache.
runningaudit2allow -w -asaid to run```
setsebool -P httpd_unified 1

When I first go in to install I get this:

/var/www/html/i-doit/temp is not writable or does not exist!
Make sure the apache process is allowed to write into it.
On Unix systems, do "chmod 777 /var/www/html/i-doit/temp".

/var/www/html/i-doit/src/ is not writable or does not exist!
Make sure the apache process is allowed to write into it.
On Unix systems, do "chmod 777 /var/www/html/i-doit/src/".

but when I check the install folder subfolders and permissions are correct

ls -l /var/www/html/i-doit/
total 14088
drwxrwxr-x.  5 apache users    4096 Dec  8 06:00 admin
-rw-r–r--.  1 apache users  238821 Dec  8 05:58 CHANGELOG
-rw-r--r--.  1 apache users    3204 Dec  8 06:00 checkmk_transfer.sh
-rw-r--r--.  1 apache users    1226 Dec  8 05:58 composer.json
-rw-r--r--.  1 apache users    76117 Dec  8 05:58 composer.lock
-rwxr-xr-x.  1 apache users      337 Dec  8 06:00 controller
-rw-r--r--.  1 apache users    17909 Dec  8 06:00 controller.php
drwxrwxr-x.  4 apache users    4096 Dec  8 05:58 docs
-rw-r--r--.  1 apache users 13970890 Feb  8 06:16 idoit-open-1.8.zip
-rwxr-xr-x.  1 apache users    3447 Dec  8 06:00 idoit-rights.sh
drwxrwxr-x. 14 apache users    4096 Dec  8 05:58 images
-rwxr-xr-x.  1 apache users      256 Dec  8 05:58 import
drwxrwxrwx.  4 apache users    4096 Dec  8 05:58 imports
-rw-r--r--.  1 apache users    6821 Dec  8 06:00 index.php
-rw-r--r--.  1 apache users    3991 Dec  8 05:58 INSTALL
-rw-r--r--.  1 apache users      52 Dec  8 06:00 LICENSE
drwxrwxr-x.  2 apache users    4096 Dec  8 05:58 log
-rw-r--r--.  1 apache users    4672 Dec  8 06:00 proxy.php
drwxrwxr-x.  4 apache users    4096 Dec  8 06:00 setup
drwxrwxrwx.  9 apache users    4096 Dec  8 06:00 src
drwxrwxr-x.  3 apache users    4096 Dec  8 05:58 syslog
drwxrwxrwx.  2 apache users    4096 Dec  8 05:58 temp
-rwxr-xr-x.  1 apache users      417 Dec  8 05:58 tenants
-rw-r--r--.  1 apache users    2665 Dec  8 05:58 UPDATE
-rwxr-xr-x.  1 apache users      455 Dec  8 05:58 updatecheck
drwxrwxr-x.  6 apache users    4096 Dec  8 06:00 updates
drwxrwxr-x.  5 apache users    4096 Dec  8 05:58 upload
drwxrwxr-x. 26 apache users    4096 Dec  8 06:00 vendor
drwxrwxr-x.  2 apache users    4096 Dec  8 05:58 xsd
drwxrwxr-x.  2 apache users    4096 Dec  8 05:58 xsl