Actor issues

We had many issues with trying to arrange a day where all actors were available. We planned a day where we were all available to go to the location and film, but when we arrived, only four of the people came. The other people involved were un-reachable when trying to contact meaning we had to adapt and change some things in order for us to film. One of our group members had most of the things needed for a character and didn't turn up on the day so we had to completely get rid of this character out of the film without changing the storyline too much. So now rather than the storyline being about a haunted woman, the woman is no longer in the film and in fact is now the caretaker who is haunted. The main storyline itself is still the same with the locations and the haunted building theme with the use of the elevator. It also doesn't effect the title of the film but caused quite a few issues when trying to film. Some issues were we were left discussing for a while what to do next and had to try and think of new shots now we had gotten rid of some of the other. We would not have to change any previous posts we have made, but we would need to discuss the issues in our final evaluation to explain how things slightly changed.