Sorry for the untimely response.
Perhaps check permissions, make sure that the folder circleflip is owned by the same user as the root folder containing the WordPress installation.
If that’s not the cause. please try checking that the max_ limits of php.ini
Here are the relevant settings in my file.
max_execution_time = 180
max_input_time = 600
post_max_size = 128M
upload_max_filesize = 256M
Please let me know how it goes, and if you want help setting php.ini