I have Adobe Version CS5. it is installed on a Mac Book Pro. MacOSMojave version 10.14.6
Each time I attempt to use certain tools in Photoshop the entire system collapses. Moreover, lots of basic tools are missing.For example, each time I attempt to use the "T" (Text tool) everything shuts down.
I then get a note saying Photoshop quit unexpectedly.
Any advice, help on how to fix this probelm would be most welcome and appreciated.