Server Full

Hiya Guys,

I dont know much about servers and the commands.

---

Im trying to install some stuff but my server is full.I have tried search function but there isn't much information i can use.

Code:

df -i
Filesystem     Inodes  IUsed  IFree IUse% Mounted on
/dev/vda1      960000 112196 847804   12% /
devtmpfs        92448    327  92121    1% /dev
tmpfs           94793      1  94792    1% /dev/shm
tmpfs           94793    355  94438    1% /run
tmpfs           94793     16  94777    1% /sys/fs/cgroup
tmpfs           94793      1  94792    1% /run/user/0

Code:

[root@vultr ~]# du -x / | sort -n | tail -40
62680   /var/lib/rpm
66772   /usr/libexec
70036   /usr/src/kernels/3.10.0-514.2.2.el7.x86_64
70040   /usr/src/kernels
70048   /usr/src
70272   /usr/lib64/mysql/plugin
70276   /usr/lib64/mysql
83816   /var/cache/yum/x86_64/7
83820   /var/cache/yum/x86_64
83824   /var/cache/yum
85968   /svr-setup/php-5.6.29/fpm-build
87360   /var/cache
88040   /usr/share/doc
91404   /usr/lib/modules/3.10.0-514.el7.x86_64/kernel/drivers
91416   /usr/lib/modules/3.10.0-514.2.2.el7.x86_64/kernel/drivers
103560  /usr/lib/locale
116744  /svr-setup/libressl-2.4.4
119100  /usr/local
123084  /svr-setup/php-5.6.29/ext
124276  /usr/share/locale
125448  /boot
128808  /usr/lib/modules/3.10.0-514.el7.x86_64/kernel
128824  /usr/lib/modules/3.10.0-514.2.2.el7.x86_64/kernel
131788  /usr/lib/modules/3.10.0-514.el7.x86_64
131804  /usr/lib/modules/3.10.0-514.2.2.el7.x86_64
153876  /usr/lib/firmware
158692  /usr/sbin
240480  /svr-setup/php-5.6.29
263596  /usr/lib/modules
339708  /var/lib/mysql
424676  /var/lib
459980  /usr/bin
475944  /usr/share
516628  /var
536988  /usr/lib64
636976  /usr/lib
658860  /svr-setup
2583968 /usr
10441576        /tmp
15427436        /

Question is how do i delete the temp folder and the folder underneath, will doing so cause any problems?

thanks