This isn’t why the error occurs. You need to enable the repository Test Updates to update the library. /lib64/libavformat.so.62
kmail: symbol lookup error: /lib64/libavformat.so.62: undefined symbol: av_exif_parse_buffer, version LIBAVCODEC_62
The developers made a small mistake by including a dependency on a library from the test repository in the stable update.
After updating from the repository, everything works.