Upgrade Sugar 6.5 to SuiteCRM Error

i trried to migrate my Sugar 6.5 to 7.6.6 but after uploading the file i got a white site.
If i reload the site i get the errormessage:

Warning: Unexpected character in input: '\' (ASCII=92) state=1 in C:\xampp\htdocs\crm3\include\utils.php on line 1623

Parse error: syntax error, unexpected T_FUNCTION in C:\xampp\htdocs\crm3\include\utils.php on line 4365

I am using PHP Version 5.2.6
Does s.o. can help me please to fix?

Thanks a lot.
Best regards


PHP Version 5.2.6

Forgot guy !!!
Backup database but only data
Backup your customisation.

Buy a new hosting, VPS
install a centos 7.x
install a php 7.x
install all module, apache, mysql
install a 7.8.x or 7.9.x
import your customisation or recreate it
import your sql dump of data
test if all works…

Then you can switch ! Other way, you go right on the wall

i only installed php 5.2.6 for upgrading Sugar 5.5 to 6.5
After the post i changed the Version to 5.6.31.
At the moment i can see the SuiteCRM and i am upgrading to the newest version with PHP7

Does s.o. knows how do i get rid of the files located in cache-folder? There are 4GB files stored.

Thanks a lot.

best regards